Seasonal Evaluations

The seasonal analyses are based on semi-annual evaluations. They are intended to show whether seasonal strategies such as 'Sell in May,' 'Sell in Summer,' or 'Buy in Winter' make sense for individual stocks or ETFs. In addition to the semi-annual evaluations, there are also quarterly analyses that roughly cover the spring and fall.
The minimum length of the price history analyzed is 5 years; below this, no reliable conclusions can be drawn.

The last update was made on June 01, 2026.

S&P 500

All stocks from the S&P 500 Index in alphabetical order:

3M Company (MMM)
A. O. Smith Corporation (AOS)
Abbott Laboratories (ABT)
AbbVie Inc. (ABBV)
Accenture plc (ACN)
Adobe Inc. (ADBE)
Advanced Micro Devices, Inc. (AMD)
Aflac Incorporated (AFL)
Agilent Technologies, Inc. (A)
Air Products and Chemicals, Inc. (APD)
Airbnb, Inc. (ABNB)
Akamai Technologies, Inc. (AKAM)
Albemarle Corporation (ALB)
Alexandria Real Estate Equities, Inc. (ARE)
Align Technology, Inc. (ALGN)
Allegion plc (ALLE)
Alliant Energy Corporation (LNT)
Alphabet Inc. (Class C Shares) (GOOG)
Alphabet Inc. (Class A Shares) (GOOGL)
Altria Group, Inc. (MO)
Amazon.com, Inc. (AMZN)
Amcor plc (AMCR)
Ameren Corporation (AEE)
American Electric Power Company, Inc. (AEP)
American Express Company (AXP)
American International Group, Inc. (AIG)
American Tower Corporation (AMT)
American Water Works Company, Inc. (AWK)
Ameriprise Financial, Inc. (AMP)
AMETEK, Inc. (AME)
Amgen Inc. (AMGN)
Amphenol Corporation (APH)
Analog Devices, Inc. (ADI)
Aon plc (AON)
APA Corporation (APA)
Apollo Global Management, Inc. (APO)
Apple Inc. (AAPL)
Applied Materials, Inc. (AMAT)
AppLovin Corporation (APP)
Aptiv PLC (APTV)
Arch Capital Group Ltd. (ACGL)
Archer-Daniels-Midland Company (ADM)
Ares Management Corporation (ARES)
Arista Networks, Inc. (ANET)
Arthur J. Gallagher & Co. (AJG)
Assurant, Inc. (AIZ)
AT&T Inc. (T)
Atmos Energy Corporation (ATO)
Autodesk, Inc. (ADSK)
Automatic Data Processing, Inc. (ADP)
AutoZone, Inc. (AZO)
AvalonBay Communities, Inc. (AVB)
Avery Dennison Corporation (AVY)
Axon Enterprise, Inc. (AXON)
Baker Hughes Company (BKR)
Ball Corporation (BALL)
Bank of America Corporation (BAC)
Baxter International Inc. (BAX)
Becton, Dickinson and Company (BDX)
Berkshire Hathaway Inc. (Class B Shares) (BRKB)
Best Buy Co., Inc. (BBY)
Bio-Techne Corporation (TECH)
Biogen Inc. (BIIB)
BlackRock, Inc. (BLK)
Blackstone Inc. (BX)
Block, Inc. (XYZ)
Booking Holdings Inc. (BKNG)
Boston Scientific Corporation (BSX)
Bristol-Myers Squibb Company (BMY)
Broadcom Inc. (AVGO)
Broadridge Financial Solutions, Inc. (BR)
Brown & Brown, Inc. (BRO)
Brown-Forman Corporation (Class B Shares) (BFB)
Builders FirstSource, Inc. (BLDR)
Bunge Global SA (BG)
BXP, Inc. (BXP)
C.H. Robinson Worldwide, Inc. (CHRW)
Cadence Design Systems, Inc. (CDNS)
Camden Property Trust (CPT)
Capital One Financial Corporation (COF)
Cardinal Health, Inc. (CAH)
Carnival Corporation & plc (CCL)
Carrier Global Corporation (CARR)
Carvana Co. (CVNA)
Casey's General Stores, Inc. (CASY)
Caterpillar Inc. (CAT)
Cboe Global Markets, Inc. (CBOE)
CBRE Group, Inc. (CBRE)
CDW Corporation (CDW)
Cencora, Inc. (COR)
Centene Corporation (CNC)
CenterPoint Energy, Inc. (CNP)
CF Industries Holdings, Inc. (CF)
Charles River Laboratories International, Inc. (CRL)
Charter Communications, Inc. (CHTR)
Chevron Corporation (CVX)
Chipotle Mexican Grill, Inc. (CMG)
Chubb Limited (CB)
Church & Dwight Co., Inc. (CHD)
Ciena Corporation (CIEN)
Cincinnati Financial Corporation (CINF)
Cintas Corporation (CTAS)
Cisco Systems, Inc. (CSCO)
Citigroup Inc. (C)
Citizens Financial Group, Inc. (CFG)
CME Group Inc. (CME)
CMS Energy Corporation (CMS)
Cognizant Technology Solutions Corporation (CTSH)
Coherent Corp. (COHR)
Coinbase Global, Inc. (COIN)
Colgate-Palmolive Company (CL)
Comcast Corporation (CMCSA)
Comfort Systems USA, Inc. (FIX)
Conagra Brands, Inc. (CAG)
ConocoPhillips (COP)
Consolidated Edison, Inc. (ED)
Constellation Brands, Inc. (STZ)
Constellation Energy Corporation (CEG) - No analysis available!
Copart, Inc. (CPRT)
Corning Incorporated (GLW)
Corpay, Inc. (CPAY)
Corteva, Inc. (CTVA)
CoStar Group, Inc. (CSGP)
Costco Wholesale Corporation (COST)
CRH plc (CRH)
CrowdStrike Holdings, Inc. (CRWD)
Crown Castle Inc. (CCI)
CSX Corporation (CSX)
Cummins Inc. (CMI)
CVS Health Corporation (CVS)
D.R. Horton, Inc. (DHI)
Danaher Corporation (DHR)
Darden Restaurants, Inc. (DRI)
Datadog, Inc. (DDOG)
DaVita Inc. (DVA)
Deckers Outdoor Corporation (DECK)
Deere & Company (DE)
Dell Technologies Inc. (DELL)
Delta Air Lines, Inc. (DAL)
Devon Energy Corporation (DVN)
DexCom, Inc. (DXCM)
Diamondback Energy, Inc. (FANG)
Digital Realty Trust, Inc. (DLR)
Dollar General Corporation (DG)
Dollar Tree, Inc. (DLTR)
Dominion Energy, Inc. (D)
Domino's Pizza, Inc. (DPZ)
DoorDash, Inc. (DASH)
Dover Corporation (DOV)
Dow Inc. (DOW)
DTE Energy Company (DTE)
Duke Energy Corporation (DUK)
DuPont de Nemours, Inc. (DD)
Eaton Corporation plc (ETN)
eBay Inc. (EBAY)
EchoStar Corporation (SATS)
Ecolab Inc. (ECL)
Edison International (EIX)
Edwards Lifesciences Corporation (EW)
Electronic Arts Inc. (EA)
Elevance Health, Inc. (ELV)
Eli Lilly and Company (LLY)
EMCOR Group, Inc. (EME)
Emerson Electric Co. (EMR)
Entergy Corporation (ETR)
EOG Resources, Inc. (EOG)
EPAM Systems, Inc. (EPAM)
EQT Corporation (EQT)
Equifax Inc. (EFX)
Equinix, Inc. (EQIX)
Equity Residential (EQR)
Erie Indemnity Company (ERIE)
Essex Property Trust, Inc. (ESS)
Everest Group, Ltd. (EG)
Evergy, Inc. (EVRG)
Eversource Energy (ES)
Exelon Corporation (EXC)
Expand Energy Corporation (EXE)
Expedia Group, Inc. (EXPE)
Expeditors International of Washington, Inc. (EXPD)
Extra Space Storage Inc. (EXR)
Exxon Mobil Corporation (XOM)
F5, Inc. (FFIV)
FactSet Research Systems Inc. (FDS)
Fair Isaac Corporation (FICO)
Fastenal Company (FAST)
Federal Realty Investment Trust (FRT)
FedEx Corporation (FDX)
Fidelity National Information Services, Inc. (FIS)
Fifth Third Bancorp (FITB)
First Solar, Inc. (FSLR)
FirstEnergy Corp. (FE)
Fiserv, Inc. (FISV)
Ford Motor Company (F)
Fortinet, Inc. (FTNT)
Fortive Corporation (FTV)
Fox Corporation (Class B Shares) (FOX)
Fox Corporation (Class A Shares) (FOXA)
Franklin Resources, Inc. (BEN)
Freeport-McMoRan Inc. (FCX)
Garmin Ltd. (GRMN)
Gartner, Inc. (IT)
GE Aerospace (GE)
GE HealthCare Technologies Inc. (GEHC) - No analysis available!
GE Vernova Inc. (GEV)
Gen Digital Inc. (GEN)
Generac Holdings Inc. (GNRC)
General Dynamics Corporation (GD)
General Mills, Inc. (GIS)
General Motors Company (GM)
Genuine Parts Company (GPC)
Gilead Sciences, Inc. (GILD)
Global Payments Inc. (GPN)
Globe Life Inc. (GL)
GoDaddy Inc. (GDDY)
Halliburton Company (HAL)
Hasbro, Inc. (HAS)
HCA Healthcare, Inc. (HCA)
Healthpeak Properties, Inc. (DOC)
Henry Schein, Inc. (HSIC)
Hewlett Packard Enterprise Company (HPE)
Hilton Worldwide Holdings Inc. (HLT)
Honeywell International Inc. (HON)
Hormel Foods Corporation (HRL)
Host Hotels & Resorts, Inc. (HST)
Howmet Aerospace Inc. (HWM)
HP Inc. (HPQ)
Hubbell Incorporated (HUBB)
Humana Inc. (HUM)
Huntington Bancshares Incorporated (HBAN)
Huntington Ingalls Industries, Inc. (HII)
IDEX Corporation (IEX)
IDEXX Laboratories, Inc. (IDXX)
Illinois Tool Works Inc. (ITW)
Incyte Corporation (INCY)
Ingersoll Rand Inc. (IR)
Insulet Corporation (PODD)
Intel Corporation (INTC)
Interactive Brokers Group, Inc. (IBKR)
Intercontinental Exchange, Inc. (ICE)
International Business Machines Corporation (IBM)
International Flavors & Fragrances Inc. (IFF)
International Paper Company (IP)
Intuit Inc. (INTU)
Intuitive Surgical, Inc. (ISRG)
Invesco Ltd. (IVZ)
Invitation Homes Inc. (INVH)
IQVIA Holdings Inc. (IQV)
Iron Mountain Incorporated (IRM)
J.B. Hunt Transport Services, Inc. (JBHT)
Jabil Inc. (JBL)
Jack Henry & Associates, Inc. (JKHY)
Jacobs Solutions Inc. (J)
Johnson & Johnson (JNJ)
Johnson Controls International plc (JCI)
JPMorgan Chase & Co. (JPM)
Kenvue Inc. (KVUE) - No analysis available!
Keurig Dr Pepper Inc. (KDP)
KeyCorp (KEY)
Keysight Technologies, Inc. (KEYS)
Kimberly-Clark Corporation (KMB)
Kimco Realty Corporation (KIM)
Kinder Morgan, Inc. (KMI)
KKR & Co. Inc. (KKR)
KLA Corporation (KLAC)
L3Harris Technologies, Inc. (LHX)
Labcorp Holdings Inc. (LH)
Lam Research Corporation (LRCX)
Las Vegas Sands Corp. (LVS)
Leidos Holdings, Inc. (LDOS)
Lennar Corporation (LEN)
Lennox International Inc. (LII)
Linde plc (LIN)
Live Nation Entertainment, Inc. (LYV)
Lockheed Martin Corporation (LMT)
Loews Corporation (L)
Lowe's Companies, Inc. (LOW)
lululemon athletica inc. (LULU)
Lumentum Holdings Inc. (LITE)
LyondellBasell Industries N.V. (LYB)
M&T Bank Corporation (MTB)
Marathon Petroleum Corporation (MPC)
Marriott International, Inc. (MAR)
Marsh & McLennan Companies, Inc. (MRSH)
Martin Marietta Materials, Inc. (MLM)
Masco Corporation (MAS)
Mastercard Incorporated (MA)
McCormick & Company, Incorporated (MKC)
McDonald's Corporation (MCD)
McKesson Corporation (MCK)
Medtronic plc (MDT)
Merck & Co., Inc. (MRK)
Meta Platforms, Inc. (META)
MetLife, Inc. (MET)
Mettler-Toledo International Inc. (MTD)
MGM Resorts International (MGM)
Microchip Technology Incorporated (MCHP)
Micron Technology, Inc. (MU)
Microsoft Corporation (MSFT)
Mid-America Apartment Communities, Inc. (MAA)
Moderna, Inc. (MRNA)
Molson Coors Beverage Company (TAP)
Mondelez International, Inc. (MDLZ)
Monolithic Power Systems, Inc. (MPWR)
Monster Beverage Corporation (MNST)
Moody's Corporation (MCO)
Morgan Stanley (MS)
Motorola Solutions, Inc. (MSI)
MSCI Inc. (MSCI)
Nasdaq, Inc. (NDAQ)
NetApp, Inc. (NTAP)
Netflix, Inc. (NFLX)
Newmont Corporation (NEM)
News Corporation (Class B Shares) (NWS)
News Corporation (Class A Shares) (NWSA)
NextEra Energy, Inc. (NEE)
NIKE, Inc. (NKE)
NiSource Inc. (NI)
Nordson Corporation (NDSN)
Norfolk Southern Corporation (NSC)
Northern Trust Corporation (NTRS)
Northrop Grumman Corporation (NOC)
Norwegian Cruise Line Holdings Ltd. (NCLH)
NRG Energy, Inc. (NRG)
Nucor Corporation (NUE)
NVIDIA Corporation (NVDA)
NVR, Inc. (NVR)
NXP Semiconductors N.V. (NXPI)
O'Reilly Automotive, Inc. (ORLY)
Occidental Petroleum Corporation (OXY)
Old Dominion Freight Line, Inc. (ODFL)
Omnicom Group Inc. (OMC)
ON Semiconductor Corporation (ON)
ONEOK, Inc. (OKE)
Oracle Corporation (ORCL)
Otis Worldwide Corporation (OTIS)
PACCAR Inc (PCAR)
Packaging Corporation of America (PKG)
Palantir Technologies Inc. (PLTR)
Palo Alto Networks, Inc. (PANW)
Paramount Skydance Corporation (PSKY) - No analysis available!
Parker-Hannifin Corporation (PH)
Paychex, Inc. (PAYX)
PayPal Holdings, Inc. (PYPL)
Pentair plc (PNR)
PepsiCo, Inc. (PEP)
Pfizer Inc. (PFE)
PG&E Corporation (PCG)
Philip Morris International Inc. (PM)
Phillips 66 (PSX)
Pinnacle West Capital Corporation (PNW)
Pool Corporation (POOL)
PPG Industries, Inc. (PPG)
PPL Corporation (PPL)
Principal Financial Group, Inc. (PFG)
Prologis, Inc. (PLD)
Prudential Financial, Inc. (PRU)
PTC Inc. (PTC)
Public Service Enterprise Group Incorporated (PEG)
Public Storage (PSA)
PulteGroup, Inc. (PHM)
Qnity Electronics, Inc. (Q) - No analysis available!
QUALCOMM Incorporated (QCOM)
Quanta Services, Inc. (PWR)
Quest Diagnostics Incorporated (DGX)
Ralph Lauren Corporation (RL)
Raymond James Financial, Inc. (RJF)
Realty Income Corporation (O)
Regency Centers Corporation (REG)
Regeneron Pharmaceuticals, Inc. (REGN)
Regions Financial Corporation (RF)
Republic Services, Inc. (RSG)
ResMed Inc. (RMD)
Revvity, Inc. (RVTY)
Robinhood Markets, Inc. (HOOD)
Rockwell Automation, Inc. (ROK)
Rollins, Inc. (ROL)
Roper Technologies, Inc. (ROP)
Ross Stores, Inc. (ROST)
Royal Caribbean Cruises Ltd. (RCL)
RTX Corporation (RTX)
S&P Global Inc. (SPGI)
Salesforce, Inc. (CRM)
Sandisk Corporation (SNDK) - No analysis available!
SBA Communications Corporation (SBAC)
Seagate Technology Holdings plc (STX)
Sempra (SRE)
ServiceNow, Inc. (NOW)
Simon Property Group, Inc. (SPG)
Skyworks Solutions, Inc. (SWKS)
SLB N.V. (SLB)
Smurfit Westrock Plc (SW)
Snap-on Incorporated (SNA)
Solventum Corporation (SOLV) - No analysis available!
Southwest Airlines Co. (LUV)
Stanley Black & Decker, Inc. (SWK)
Starbucks Corporation (SBUX)
State Street Corporation (STT)
Steel Dynamics, Inc. (STLD)
STERIS plc (STE)
Stryker Corporation (SYK)
Super Micro Computer, Inc. (SMCI)
Synchrony Financial (SYF)
Synopsys, Inc. (SNPS)
Sysco Corporation (SYY)
T-Mobile US, Inc. (TMUS)
T. Rowe Price Group, Inc. (TROW)
Take-Two Interactive Software, Inc. (TTWO)
Tapestry, Inc. (TPR)
Targa Resources Corp. (TRGP)
Target Corporation (TGT)
TE Connectivity plc (TEL)
Teledyne Technologies Incorporated (TDY)
Teradyne, Inc. (TER)
Tesla, Inc. (TSLA)
Texas Instruments Incorporated (TXN)
Texas Pacific Land Corporation (TPL)
Textron Inc. (TXT)
The AES Corporation (AES)
The Allstate Corporation (ALL)
The Bank of New York Mellon Corporation (BK)
The Boeing Company (BA)
The Campbell's Company (CPB)
The Charles Schwab Corporation (SCHW)
The Cigna Group (CI)
The Clorox Company (CLX)
The Coca-Cola Company (KO)
The Cooper Companies, Inc. (COO)
The Estée Lauder Companies Inc. (EL)
The Goldman Sachs Group, Inc. (GS)
The Hartford Insurance Group, Inc. (HIG)
The Hershey Company (HSY)
The Home Depot, Inc. (HD)
The J. M. Smucker Company (SJM)
The Kraft Heinz Company (KHC)
The Kroger Co. (KR)
The Mosaic Company (MOS)
The PNC Financial Services Group, Inc. (PNC)
The Procter & Gamble Company (PG)
The Progressive Corporation (PGR)
The Sherwin-Williams Company (SHW)
The Southern Company (SO)
The TJX Companies, Inc. (TJX)
The Trade Desk, Inc. (TTD)
The Travelers Companies, Inc. (TRV)
The Walt Disney Company (DIS)
The Williams Companies, Inc. (WMB)
Thermo Fisher Scientific Inc. (TMO)
TKO Group Holdings, Inc. (TKO)
Tractor Supply Company (TSCO)
Trane Technologies plc (TT)
TransDigm Group Incorporated (TDG)
Trimble Inc. (TRMB)
Truist Financial Corporation (TFC)
Tyler Technologies, Inc. (TYL)
Tyson Foods, Inc. (TSN)
U.S. Bancorp (USB)
Uber Technologies, Inc. (UBER)
UDR, Inc. (UDR)
Ulta Beauty, Inc. (ULTA)
Union Pacific Corporation (UNP)
United Airlines Holdings, Inc. (UAL)
United Parcel Service, Inc. (UPS)
United Rentals, Inc. (URI)
UnitedHealth Group Incorporated (UNH)
Universal Health Services, Inc. (UHS)
Valero Energy Corporation (VLO)
Ventas, Inc. (VTR)
Veralto Corporation (VLTO) - No analysis available!
VeriSign, Inc. (VRSN)
Verisk Analytics, Inc. (VRSK)
Verizon Communications Inc. (VZ)
Vertex Pharmaceuticals Incorporated (VRTX)
Vertiv Holdings Co (VRT)
Viatris Inc. (VTRS)
VICI Properties Inc. (VICI)
Visa Inc. (V)
Vistra Corp. (VST)
Vulcan Materials Company (VMC)
W. R. Berkley Corporation (WRB)
W.W. Grainger, Inc. (GWW)
Walmart Inc. (WMT)
Warner Bros. Discovery, Inc. (WBD)
Waste Management, Inc. (WM)
Waters Corporation (WAT)
WEC Energy Group, Inc. (WEC)
Wells Fargo & Company (WFC)
Welltower Inc. (WELL)
West Pharmaceutical Services, Inc. (WST)
Western Digital Corporation (WDC)
Westinghouse Air Brake Technologies Corporation (WAB)
Weyerhaeuser Company (WY)
Williams-Sonoma, Inc. (WSM)
Willis Towers Watson Public Limited Company (WTW)
Workday, Inc. (WDAY)
Wynn Resorts, Limited (WYNN)
Xcel Energy Inc. (XEL)
Xylem Inc. (XYL)
Yum! Brands, Inc. (YUM)
Zebra Technologies Corporation (ZBRA)
Zimmer Biomet Holdings, Inc. (ZBH)
Zoetis Inc. (ZTS)

ETFs

The most popular ETFs in alphabetical order:

Avantis U.S. Small Cap Value ETF (AVUV)
Capital Group Dividend Value ETF (CGDV) - No analysis available!
Dimensional U.S. Core Equity 2 ETF (DFAC)
Invesco NASDAQ 100 ETF (QQQM)
Invesco QQQ Trust Series I (QQQ)
Invesco S&P 500 Equal Weight ETF (RSP)
iShares 0-3 Month Treasury Bond ETF (SGOV)
iShares 20+ Year Treasury Bond ETF (TLT)
iShares 7-10 Year Treasury Bond ETF (IEF)
iShares Bitcoin Trust ETF (IBIT) - No analysis available!
iShares Broad USD High Yield Corporate Bond ETF (USHY)
iShares Core Dividend Growth ETF (DGRO)
iShares Core MSCI EAFE ETF (IEFA)
iShares Core MSCI Emerging Markets ETF (IEMG)
iShares Core MSCI International Developed Markets ETF (IDEV)
iShares Core MSCI Total International Stock ETF (IXUS)
iShares Core S&P 500 ETF (IVV)
iShares Core S&P Mid-Cap ETF (IJH)
iShares Core S&P Small Cap ETF (IJR)
iShares Core S&P Total U.S. Stock Market ETF (ITOT)
iShares Core S&P U.S. Growth ETF (IUSG)
iShares Core S&P US Value ETF (IUSV)
iShares Core Total USD Bond Market ETF (IUSB)
iShares Core U.S. Aggregate Bond ETF (AGG)
iShares Gold Trust (IAU)
iShares iBoxx $ Investment Grade Corporate Bond ETF (LQD)
iShares MBS ETF (MBB)
iShares MSCI ACWI ETF (ACWI)
iShares MSCI EAFE ETF (EFA)
iShares MSCI EAFE Value ETF (EFV)
iShares MSCI Emerging Markets ETF (EEM)
iShares MSCI USA Quality Factor ETF (QUAL)
iShares National Muni Bond ETF (MUB)
iShares Russell 1000 ETF (IWB)
iShares Russell 1000 Growth ETF (IWF)
iShares Russell 1000 Value ETF (IWD)
iShares Russell 2000 ETF (IWM)
iShares Russell Midcap ETF (IWR)
iShares S&P 500 Growth ETF (IVW)
iShares S&P 500 Value ETF (IVE)
iShares Semiconductor ETF (SOXX)
iShares Silver Trust (SLV)
iShares U.S. Equity Factor Rotation Active ETF (DYNF)
iShares U.S. Treasury Bond ETF (GOVT)
Janus Henderson AAA CLO ETF (JAAA)
JPMorgan Equity Premium Income ETF (JEPI)
JPMorgan NASDAQ Equity Premium Income ETF (JEPQ) - No analysis available!
JPMorgan Ultra-Short Income ETF (JPST)
ProShares UltraPro QQQ (TQQQ)
Schwab International Equity ETF (SCHF)
Schwab U.S. Broad Market ETF (SCHB)
Schwab U.S. Large-Cap ETF (SCHX)
Schwab U.S. Large-Cap Growth ETF (SCHG)
Schwab US Dividend Equity ETF (SCHD)
SPDR Gold Minishares Trust of beneficial interest (GLDM)
SPDR Gold Shares (GLD)
State Street Energy Select Sector SPDR ETF (XLE)
State Street Financial Select Sector SPDR ETF (XLF)
State Street Health Care Select Sector SPDR ETF (XLV)
State Street Industrial Select Sector SPDR ETF (XLI)
State Street SPDR Bloomberg 1-3 Month T-Bill ETF (BIL)
State Street SPDR Dow Jones Industrial Average ETF Trust (DIA)
State Street SPDR Portfolio Developed World ex-US ETF (SPDW)
State Street SPDR Portfolio S&P 500 Growth ETF (SPYG)
State Street SPDR Portfolio S&P 500 Value ETF (SPYV)
State Street SPDR S&P 500 ETF (SPY)
State Street SPDR S&P MIDCAP 400 ETF Trust (MDY)
State Street Technology Select Sector SPDR ETF (XLK)
VanEck Gold Miners ETF (GDX)
VanEck Semiconductor ETF (SMH)
Vanguard Dividend Appreciation ETF (VIG)
Vanguard Extended Market ETF (VXF)
Vanguard FTSE All-World ex-US Index Fund (VEU)
Vanguard FTSE Developed Markets ETF (VEA)
Vanguard FTSE Emerging Markets ETF (VWO)
Vanguard FTSE Europe ETF (VGK)
Vanguard Growth ETF (VUG)
Vanguard High Dividend Yield Index ETF (VYM)
Vanguard Information Technology ETF (VGT)
Vanguard Intermediate-Term Bond ETF (BIV)
Vanguard Intermediate-Term Corporate Bond ETF (VCIT)
Vanguard Intermediate-Term Treasury ETF (VGIT)
Vanguard Large-Cap ETF (VV)
Vanguard Mega Cap Growth ETF (MGK)
Vanguard Mid-Cap ETF (VO)
Vanguard Real Estate ETF (VNQ)
Vanguard Russell 1000 Growth ETF (VONG)
Vanguard S&P 500 ETF (VOO)
Vanguard Short-Term Bond ETF (BSV)
Vanguard Short-Term Corporate Bond ETF (VCSH)
Vanguard Short-Term Treasury ETF (VGSH)
Vanguard Small Cap Value ETF (VBR)
Vanguard Small-Cap ETF (VB)
Vanguard Tax-Exempt Bond ETF (VTEB)
Vanguard Total Bond Market ETF (BND)
Vanguard Total International Bond ETF (BNDX)
Vanguard Total International Stock ETF (VXUS)
Vanguard Total Stock Market ETF (VTI)
Vanguard Total World Stock ETF (VT)
Vanguard Value ETF (VTV)

Further information

Explanation of the division of a calendar year on Wikipedia: https://en.wikipedia.org/wiki/Calendar_year#Parts
Sell in May on Wikipedia: https://en.wikipedia.org/wiki/Sell_in_May
Calendar effects on Wikipedia: https://en.wikipedia.org/wiki/Calendar_effect
Stock market cycles on Wikipedia: https://en.wikipedia.org/wiki/Stock_market_cycle
Academic paper on the topic "Seasonality in the Cross-Section of Stock Returns" by Steven L. Heston and Ronnie Sadka (PDF): https://w4.stern.nyu.edu/finance/docs/pdfs/Seminars/063f-sadka.pdf
The study "Are Return Seasonalities Due to Risk or Mispricing? Evidence from Seasonal Reversals" by Matti Keloharju, Juhani T. Linnainmaa, and Peter M. Nyberg found that stock prices tend to exhibit short-term seasonal weakness, which, however, evens out over the course of a year. The effect is statistically significant and represents a strong market anomaly: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3276334
A scientific meta-study titled "Global Factor Premiums" by Guido Baltussen, Laurens Swinkels, and Pim Van Vliet on factor premiums. The study identified seasonality as one of the few consistent market anomalies: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3325720

Seasonal Evaluations

S&P 500

ETFs

Top Seasonal Performers Ranking

Further information