Basic Stats
Portfolio Value $ 516,867,073
Current Positions 33
Latest Holdings, Performance, AUM (from 13F, 13D)

MSOAX - MainStay MacKay Common Stock Fund Class A has disclosed 33 total holdings in their latest SEC filings. Most recent portfolio value is calculated to be $ 516,867,073 USD. Actual Assets Under Management (AUM) is this value plus cash (which is not disclosed). MSOAX - MainStay MacKay Common Stock Fund Class A’s top holdings are Constellation Software Inc. (CA:CSU) , The Progressive Corporation (US:PGR) , NVR, Inc. (US:NVR) , Copart, Inc. (US:CPRT) , and Markel Group Inc. (US:MKL) . MSOAX - MainStay MacKay Common Stock Fund Class A’s new positions include Amphenol Corporation (US:APH) , .

Top Increases This Quarter

We use the change in the portfolio allocation because this is the most meaningful metric. Changes can be due to trades or changes in share prices.

Security Shares
(MM)
Value
(MM$)
Portfolio % ΔPortfolio %
0.22 17.19 3.3302 3.3302
0.37 12.74 2.4684 1.5498
0.01 47.29 9.1606 1.1445
0.12 34.35 6.6530 0.8264
0.01 19.70 3.8149 0.4500
0.41 25.09 4.8592 0.4115
0.10 20.54 3.9787 0.3434
0.09 16.93 3.2784 0.3387
0.04 8.90 1.7246 0.2823
2.41 2.41 0.4660 0.2289
Top Decreases This Quarter

We use the change in the portfolio allocation because this is the most meaningful metric. Changes can be due to trades or changes in share prices.

Security Shares
(MM)
Value
(MM$)
Portfolio % ΔPortfolio %
0.01 14.73 2.8524 -1.2041
0.22 19.78 3.8307 -0.7096
0.10 5.50 1.0646 -0.5713
0.02 8.17 1.5830 -0.4297
0.09 15.19 2.9430 -0.4212
0.21 11.01 2.1332 -0.4126
0.05 8.49 1.6436 -0.3999
0.01 24.81 4.8061 -0.3736
0.08 12.12 2.3483 -0.2313
0.04 16.86 3.2651 -0.2120
13F and Fund Filings

This form was filed on 2025-06-24 for the reporting period 2025-04-30. Click the link icon to see the full transaction history.

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2022-07-28: Important Note - We have changed the treatment of the Δ Portfolio % column in this table. Previously, we were reporting it as the percent change in the portfolio allocation. We are now reporting it as the raw change in the portfolio allocation (still reported as a percent). In formula terms, we were previously reporting it as 100 * (current allocation - prior allocation ) / prior allocation. We are now reporting it as (current allocation - prior allocation).
Security Type Avg Share Price Shares
(MM)
ΔShares
(%)
ΔShares
(%)
Value
($MM)
Portfolio
(%)
ΔPortfolio
(%)
CSU / Constellation Software Inc. 0.01 -2.02 47.29 7.97 9.1606 1.1445
PGR / The Progressive Corporation 0.12 -5.64 34.35 7.88 6.6530 0.8264
NVR / NVR, Inc. 0.00 9.66 27.90 -2.52 5.4049 0.1664
CPRT / Copart, Inc. 0.41 -2.02 25.09 3.22 4.8592 0.4115
MKL / Markel Group Inc. 0.01 -11.84 24.81 -12.34 4.8061 -0.3736
BRK.B / Berkshire Hathaway Inc. 0.04 -19.04 21.99 -7.88 4.2592 -0.1092
LIN / Linde plc 0.05 -2.02 20.96 -0.46 4.0595 0.2063
CTAS / Cintas Corporation 0.10 -2.02 20.54 3.41 3.9787 0.3434
PCAR / PACCAR Inc 0.22 -2.02 19.78 -20.29 3.8307 -0.7096
ORLY / O'Reilly Automotive, Inc. 0.01 -2.03 19.70 7.11 3.8149 0.4500
APH / Amphenol Corporation 0.22 17.19 3.3302 3.3302
SHW / The Sherwin-Williams Company 0.05 -6.86 17.07 -8.22 3.3064 -0.0975
WCN / Waste Connections, Inc. 0.09 -2.02 16.93 5.37 3.2784 0.3387
WSO / Watsco, Inc. 0.04 -7.66 16.86 -11.28 3.2651 -0.2120
EXPD / Expeditors International of Washington, Inc. 0.15 -2.02 16.27 -5.19 3.1513 0.0110
ODFL / Old Dominion Freight Line, Inc. 0.10 14.98 15.48 -5.05 2.9993 0.0149
CACC / Credit Acceptance Corporation 0.03 -2.02 15.23 -5.95 2.9500 -0.0134
MTB / M&T Bank Corporation 0.09 -2.02 15.19 -17.35 2.9430 -0.4212
COST / Costco Wholesale Corporation 0.01 -34.54 14.73 -33.56 2.8524 -1.2041
BFB / Brown-Forman Corp. - Class B 0.37 140.55 12.74 153.90 2.4684 1.5498
CDW / CDW Corporation 0.08 6.67 12.12 -14.00 2.3483 -0.2313
DE / Deere & Company 0.02 -2.02 11.03 -4.70 2.1370 0.0185
BN / Brookfield Corporation 0.21 -9.73 11.01 -20.83 2.1332 -0.4126
DHR / Danaher Corporation 0.05 -2.02 9.51 -12.32 1.8417 -0.1428
BLL / Ball Corp. 0.17 -6.43 9.04 -12.75 1.7517 -0.1451
AMT / American Tower Corporation 0.04 -7.31 8.90 12.97 1.7246 0.2823
PSA / Public Storage 0.03 -2.02 8.74 -1.39 1.6934 0.0710
IEX / IDEX Corporation 0.05 -2.02 8.49 -24.01 1.6436 -0.3999
UNH / UnitedHealth Group Incorporated 0.02 -2.02 8.17 -25.69 1.5830 -0.4297
BAM / Brookfield Asset Management Ltd. 0.10 -31.02 5.50 -38.52 1.0646 -0.5713
MUSXX / MainStay U.S. Government Liquidity Fund 2.41 85.67 2.41 85.79 0.4660 0.2289
LMN / Lumine Group Inc. 0.05 0.00 1.66 21.91 0.3212 0.0722
US8252528851 / Invesco Government & Agency Portfolio, Institutional Class 0.18 4,190.80 0.18 4,375.00 0.0347 0.0339
CA21037X1345 / CONSTELLATION SOFTWARE INC 0.02 0.00 0.00 0.0000 0.0000