undamentalytics Newsletter
Sign in

Funds (13F)

Whale Rock Capital Management LLC

Backtest from 16 Aug 2013 to 2 Nov 2026 · weekly · hypothetical

Watch this strategy
Return a year
+24.0%
S&P 500 +14.1%
Last 12 months
−12.6%
S&P 500 +12.1%
Sharpe ratio
0.80
S&P 500 0.78
Biggest drop
−60.0%
S&P 500 −31.8%
$10.0k$20.0k$40.0k$80.0k$160k 2013201520172019202120232025 $172k$57.0k
StrategyS&P 500 $10,000 in Whale Rock Capital Management LLC from 16 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 Whale Rock Capital Management 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.

Whale Rock Capital Management LLC's 13F holdings →

Key statistics

MeasureStrategyS&P 500
Return a year (compound)+24.0%+14.1%
Total return+1620%+470%
Last 12 months−12.6%+12.1%
Last 3 months−15.4%—
Last month−26.7%—
This year so far−10.3%—
Volatility a year30.0%16.0%
Sharpe ratio0.800.78
Biggest drop−60.0%−31.8%
Beta to the S&P 5001.431.00
Alpha a year (t-statistic)+6.2% (1.15)—
Share of weeks up57%—

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
SNDK11.3%——
AMD7.3%——
GOOGL7.1%——
TTMI6.6%——
ALAB6.3%——
AMZN4.8%——
GLW4.7%——
MKSI4.7%——
CLS4.5%——
BE4.0%——
COHR4.0%——
FN3.5%——
FROG3.4%——
MTSI3.1%——
VIAV2.7%——
LRCX2.7%——
TSM2.3%——
CVNA2.3%——
META2.1%——
WDC2.1%——
APP2.0%——
SNOW1.9%——
TWLO1.4%——
STX1.2%——
KVYO0.7%——
NVDA0.6%——
MDB0.6%——
PI0.5%——
DUOL0.5%——
INTC0.3%——
AAPL0.2%——
SPCX0.2%——
AVGO0.2%——
CBRS0.1%——

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

PeriodReturn a yearS&P 500SharpeS&P 500Biggest dropBetaAlpha (t)
Whole backtest16 Aug 2013 to 2 Nov 2026+24.0%+14.1%0.800.78−60.0%1.43+6.2% (1.15)
2018 onwards5 Jan 2018 to 2 Nov 2026+22.4%+13.9%0.690.66−60.0%1.43+6.0% (0.84)
Last three years3 Nov 2023 to 2 Nov 2026+32.8%+21.8%0.911.16−33.9%1.89−1.6% (−0.16)
Last year7 Nov 2025 to 2 Nov 2026−9.6%+14.2%−0.230.84−31.6%2.27−30.4% (−1.40)
DateCompanyAction
21 Aug 2026TWLOBought
21 Aug 2026STXBought
21 Aug 2026SPCXBought
21 Aug 2026SNOWBought
21 Aug 2026INTCBought
21 Aug 2026CBRSBought
21 Aug 2026ALABBought
22 May 2026WDCBought
22 May 2026VIAVBought
22 May 2026TSEMBought
22 May 2026NFLXBought
22 May 2026MSFTBought
22 May 2026MKSIBought
22 May 2026LRCXBought
22 May 2026ARMBought
22 May 2026AMDBought
22 May 2026AEISBought
22 May 2026AAPLBought
20 Feb 2026WLTHBought
20 Feb 2026SNDKBought
20 Feb 2026MTSIBought
21 Nov 2025SHOPBought
21 Nov 2025GOOGLBought
15 Aug 2025TTMIBought
15 Aug 2025SMCIBought

Dated at the rebalance that made the change.

DateCompanyAction
21 Aug 2026TSEMSold
21 Aug 2026RBLXSold
21 Aug 2026NFLXSold
21 Aug 2026MSFTSold
21 Aug 2026CIENSold
21 Aug 2026ARMSold
21 Aug 2026AEISSold
22 May 2026WLTHSold
22 May 2026SMTCSold
22 May 2026OKTASold
22 May 2026NUSold
22 May 2026MELISold
22 May 2026HUBSSold
22 May 2026HPESold
22 May 2026CHYMSold
20 Feb 2026VRTSold
20 Feb 2026SHOPSold
20 Feb 2026SESold
20 Feb 2026NFLXSold
20 Feb 2026MSFTSold
20 Feb 2026HNGESold
20 Feb 2026CPNGSold
21 Nov 2025SMCISold
21 Nov 2025SLABSold
21 Nov 2025MNDYSold

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