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Parnassus Investments

Parnassus Investments Portfolio holdings

AUM $37.4B
1-Year Est. Return 35.42%
This Fund
S&P 500
This Quarter Est. Return
+4.21%
1 Year Est. Return
+35.42%
3 Year Est. Return
+106.24%
5 Year Est. Return
+128.96%
10 Year Est. Return
+492.3%
AUM
$38.6B
AUM Growth
-$4.7B
Cap. Flow
-$5.72B
Cap. Flow %
-14.84%
Top 10 Hldgs %
38.64%
Holding
150
New
3
Increased
53
Reduced
82
Closed
12

Top Buys

Rank Stock Value
1
HD icon
Home Depot
HD
+$668M
2
AAPL icon
Apple
AAPL
+$408M
3
LLY icon
Eli Lilly
LLY
+$365M
4
COST icon
Costco
COST
+$219M
5
SYK icon
Stryker
SYK
+$133M

Top Sells

Rank Stock Value
1
VRTX icon
Vertex Pharmaceuticals
VRTX
+$646M
2
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$640M
3
FISV
Fiserv Inc
FISV
+$530M
4
NVDA icon
NVIDIA
NVDA
+$518M
5
AMZN icon
Amazon
AMZN
+$477M

Sector Composition

Rank Sector Weight
1 Technology 31.01%
2 Financials 15.93%
3 Healthcare 14.02%
4 Industrials 12.72%
5 Consumer Discretionary 10.5%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
NET icon
101
Cloudflare
NET
$101B
$25M 0.06%
126,935
-2,634
-2% -$557K
DDOG icon
102
Datadog
DDOG
$81.8B
$24.1M 0.06%
177,245
-4,280
-2% -$676K
MPWR icon
103
Monolithic Power Systems
MPWR
$64.1B
$24.1M 0.06%
26,590
-821
-3% -$790K
IDXX icon
104
Idexx Laboratories
IDXX
$43.6B
$22.8M 0.06%
33,651
+774
+2% +$527K
RCL icon
105
Royal Caribbean
RCL
$77.6B
$22.5M 0.06%
80,810
+21,093
+35% +$5.96M
EFX icon
106
Equifax
EFX
$22.4B
$21.5M 0.06%
98,891
-1,654,544
-94% -$362M
HOOD icon
107
Robinhood
HOOD
$97.6B
$20.4M 0.05%
180,334
-5,498
-3% -$715K
GWRE icon
108
Guidewire Software
GWRE
$15.9B
$20M 0.05%
99,502
-125,780
-56% -$27.8M
PWR icon
109
Quanta Services
PWR
$92.7B
$20M 0.05%
+47,313
New +$20.8M
MELI icon
110
Mercado Libre
MELI
$98.9B
$20M 0.05%
9,905
-103
-1% -$216K
MTD icon
111
Mettler-Toledo International
MTD
$28B
$19.3M 0.05%
13,822
+287
+2% +$401K
PTC icon
112
PTC
PTC
$16.5B
$18.7M 0.05%
107,537
-1,771
-2% -$329K
CSGP icon
113
CoStar Group
CSGP
$13B
$18.3M 0.05%
272,688
-364,286
-57% -$25.8M
ALNY icon
114
Alnylam Pharmaceuticals
ALNY
$32B
$17.7M 0.05%
44,560
+7,546
+20% +$3.34M
PCOR icon
115
Procore
PCOR
$9.18B
$16.9M 0.04%
232,594
+91,321
+65% +$6.75M
NTRA icon
116
Natera
NTRA
$48.8B
$16.2M 0.04%
70,828
+2,592
+4% +$541K
TT icon
117
Trane Technologies
TT
$102B
$15.8M 0.04%
40,502
-1,247
-3% -$516K
CDNS icon
118
Cadence Design Systems
CDNS
$92.2B
$15.4M 0.04%
49,244
-1,520
-3% -$496K
WCN
119
Waste Connections
WCN
$42B
$14.3M 0.04%
81,398
+79,904
+5,348% +$13.8M
MSCI icon
120
MSCI
MSCI
$41B
$13.5M 0.03%
23,467
+1,725
+8% +$968K
POOL icon
121
Pool Corp
POOL
$6.85B
$13.1M 0.03%
57,094
-134,700
-70% -$35M
DASH icon
122
DoorDash
DASH
$103B
$10.2M 0.03%
44,948
+38,394
+586% +$9.01M
WST icon
123
West Pharmaceutical
WST
$24.6B
$9.46M 0.02%
34,387
+819
+2% +$224K
INSM icon
124
Insmed
INSM
$27.2B
$8.99M 0.02%
51,643
+42,916
+492% +$7.83M
ASML icon
125
ASML
ASML
$671B
$2.52M 0.01%
2,358
+216
+10% +$225K
2 3 4
5
6

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Parnassus Investments's Q4 2025 Portfolio in Review

As of Q4 2025, Parnassus Investments held 150 positions worth $38.6B, down 11% from $43.3B the previous quarter. Its ten largest holdings account for 39% of the portfolio.

Parnassus Investments withdrew a net $5.72B in Q4 2025, closing 12 positions and reducing 82 holdings. Its most notable exit was Vertex Pharmaceuticals, an estimated $646M position sold in full.

By sector, the portfolio is most concentrated in Technology at 31% of assets, down from 32% a quarter earlier, followed by Financials and Healthcare.

Against the trend, Parnassus Investments opened a new position in CMS Energy worth $103M.

  • Parnassus Investments's largest Q4 2025 buy was CMS Energy: 1,472,659 shares worth $103M.
  • Parnassus Investments added most to Home Depot in Q4 2025, an estimated $668M increase.
  • Parnassus Investments's biggest Q4 2025 reduction was Alphabet (Google) Class A, cutting an estimated $640M.
  • Parnassus Investments fully exited Vertex Pharmaceuticals in Q4 2025, selling an estimated $646M.
  • Parnassus Investments's ten largest holdings make up 39% of its $38.6B portfolio in Q4 2025.
  • Parnassus Investments opened 3 new positions and closed 12 in Q4 2025.
  • Parnassus Investments's portfolio value fell 11% quarter-over-quarter to $38.6B.

Based on Parnassus Investments's 13F filing for Q4 2025, filed 12 Feb 2026.