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Funds (13F)

Parnassus Investments, LLC

Backtest from 2 Aug 2013 to 2 Nov 2026 · weekly · hypothetical

Watch this strategy
Return a year
+14.0%
S&P 500 +13.8%
Last 12 months
+9.4%
S&P 500 +12.1%
Sharpe ratio
0.78
S&P 500 0.76
Biggest drop
−29.5%
S&P 500 −31.8%
$10.0k$20.0k$40.0k 2013201520172019202120232025 $56.6k$55.3k
Parnassus Investments, LLCS&P 500 $10,000 in Parnassus Investments, LLC from 2 Aug 2013 against the S&P 500 (total return) over the same dates, marked weekly, log scale. Hypothetical: before taxes and trading costs.

About

Copies Parnassus Investments, LLC's quarterly 13F holdings in the companies we cover, weighted by reported value: it buys on the first trading day after each 13F is filed (up to 45 days after the quarter) and holds until the next filing. A 13F shows long US-listed positions only, at the quarter's end, so this misses shorts, cash, bonds, non-US holdings and trading within the quarter.

Parnassus Investments, LLC's 13F holdings →

Key statistics

MeasureStrategyS&P 500
Return a year (compound)+14.0%+13.8%
Total return+466%+453%
Last 12 months+9.4%+12.1%
Last 3 months−0.1%—
Last month−1.7%—
This year so far+7.4%—
Volatility a year15.9%15.9%
Sharpe ratio0.780.76
Biggest drop−29.5%−31.8%
Beta to the S&P 5000.971.00
Alpha a year (t-statistic)+0.6% (0.54)—
Share of weeks up59%—

Sharpe ratio uses returns above the 3-month Treasury bill rate. Alpha is the yearly return left after allowing for the strategy's exposure to the S&P 500 (CAPM); a t-statistic below about 2 means it cannot be told apart from luck.

Insights

CompanyWeightHeld sinceReturn since
GOOGL5.3%——
AMAT4.9%——
MSFT4.7%——
NVDA4.5%——
AMZN4.4%——
AMD3.6%——
KLAC3.6%——
AAPL3.4%——
WM2.9%——
DE2.8%——
LIN2.2%——
TMO2.2%——
GWW2.2%——
MA2.2%——
AVGO2.1%——
BAC2.1%——
O1.9%——
DASH1.9%——
DHR1.9%——
FERG1.8%——
HD1.8%——
LLY1.7%——
SNPS1.7%——
SYK1.6%——
SPGI1.6%——
COST1.6%——
AZO1.6%——
ICE1.5%——
HUBB1.5%——
VMC1.5%——
MAR1.5%——
GEV1.4%——
ODFL1.2%——
SHW1.1%——
PG1.0%——
MRSH0.9%——
ORCL0.8%——
BNY0.8%——
JPM0.5%——
CBRE0.5%——
TSM0.5%——
CMS0.5%——
MU0.4%——
KO0.4%——
CMI0.4%——
VZ0.4%——
SYY0.4%——
WDC0.3%——
INTC0.3%——
UNP0.3%——
AZN0.3%——
SCHW0.3%——
C0.3%——
V0.3%——
PGR0.3%——
CI0.3%——
USFD0.3%——
WTW0.3%——
EW0.3%——
FDX0.2%——
NXPI0.2%——
WMB0.2%——
XYL0.2%——
UNH0.2%——
A0.2%——
LRCX0.2%——
WMT0.2%——
SARO0.2%——
CME0.2%——
HLT0.2%——
RSG0.2%——
GWRE0.2%——
DKS0.2%——
CBOE0.2%——
TFC0.2%——
CNH0.2%——
REGN0.2%——
ABT0.2%——
ALL0.1%——
WRB0.1%——
DHI0.1%——
MDLN0.1%——
ORLY0.1%——
NICE0.1%——
SNOW0.1%——
IR0.1%——
BSX0.1%——
RCL0.1%——
HOOD0.1%——
CMG0.1%——
PNR0.1%——
ADSK0.1%——
TER0.1%——
DDOG0.1%——
ROK0.1%——
PODD0.1%——
RTO0.1%——
PWR0.1%——
MPWR0.1%——
FDXF0.1%——
VIK0.1%——
NET0.1%——
WCN0.1%——
FIX0.1%——
NTRA0.1%——
SNDK0.1%——
TT0.1%——
RVMD0.1%——
LITE0.1%——
ALAB0.1%——
CDNS0.1%——
MELI0.0%——
SGI0.0%——
IDXX0.0%——
RKLB0.0%——
ROIV0.0%——
BLDR0.0%——
TWST0.0%——
MSCI0.0%——
PTC0.0%——
RDDT0.0%——
META0.0%——
ASML0.0%——
ISRG0.0%——
APPF0.0%——
NFLX0.0%——
SHOP0.0%——
ARES0.0%——
CCEP0.0%——
CRH0.0%——
CB0.0%——

Weighted by reported value in the latest 13F, held until the next filing.

PeriodReturn a yearS&P 500SharpeS&P 500Biggest dropBetaAlpha (t)
Whole backtest2 Aug 2013 to 2 Nov 2026+14.0%+13.8%0.780.76−29.5%0.97+0.6% (0.54)
2018 onwards5 Jan 2018 to 2 Nov 2026+12.8%+13.9%0.610.66−29.5%0.96−0.6% (−0.44)
Last three years3 Nov 2023 to 2 Nov 2026+16.2%+21.8%0.861.16−14.9%0.90−3.2% (−1.27)
Last year7 Nov 2025 to 2 Nov 2026+11.1%+14.2%0.610.84−10.9%0.87−1.4% (−0.26)
DateCompanyAction
31 Jul 2026WMBBought
31 Jul 2026TWSTBought
31 Jul 2026SNOWBought
31 Jul 2026RVMDBought
31 Jul 2026ROIVBought
31 Jul 2026LITEBought
31 Jul 2026KOBought
31 Jul 2026FIXBought
31 Jul 2026FDXFBought
31 Jul 2026ALABBought
15 May 2026VIKBought
15 May 2026SHOPBought
15 May 2026SGIBought
15 May 2026RTOBought
15 May 2026RKLBBought
15 May 2026RDDTBought
15 May 2026METABought
15 May 2026MDLNBought
15 May 2026DKSBought
15 May 2026CBBought
15 May 2026BLDRBought
15 May 2026AZNBought
13 Feb 2026PWRBought
13 Feb 2026IRBought
13 Feb 2026CMSBought

Dated at the rebalance that made the change.

DateCompanyAction
31 Jul 2026VRSKSold
31 Jul 2026TRUSold
31 Jul 2026PCORSold
31 Jul 2026MTDSold
31 Jul 2026INSMSold
31 Jul 2026CRMSold
31 Jul 2026BROSold
31 Jul 2026BRSold
31 Jul 2026BIOSold
31 Jul 2026BILLSold
31 Jul 2026ALNYSold
15 May 2026YMMSold
15 May 2026WSTSold
15 May 2026WDAYSold
15 May 2026TEAMSold
15 May 2026SPOTSold
15 May 2026ROPSold
15 May 2026POOLSold
15 May 2026NVOSold
15 May 2026NOWSold
15 May 2026IQVSold
15 May 2026EFXSold
15 May 2026CSGPSold
15 May 2026BKNGSold
15 May 2026ALCSold

Dated at the rebalance that made the change.

Backtests are hypothetical and use today's listed companies only, which flatters results. Past performance does not predict future returns. This is research, not investment advice. How we backtest