William Blair & Company’s State Street SPDR S&P 500 ETF Trust SPY Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $550M | Sell |
845,294
-12,509
| -1% | -$8.5M | 1.58% | 10 |
|
|
2025
Q4 | $585M | Sell |
857,803
-1,541
| -0.2% | -$1.04M | 1.57% | 10 |
|
|
2025
Q3 | $572M | Sell |
859,344
-321
| -0% | -$206K | 1.52% | 10 |
|
|
2025
Q2 | $531M | Buy |
859,665
+5,282
| +0.6% | +$3.02M | 1.48% | 11 |
|
|
2025
Q1 | $478M | Buy |
854,383
+34,691
| +4% | +$20.4M | 1.44% | 10 |
|
|
2024
Q4 | $480M | Buy |
819,692
+14,333
| +2% | +$8.44M | 1.4% | 11 |
|
|
2024
Q3 | $462M | Buy |
805,359
+32,083
| +4% | +$17.7M | 1.36% | 13 |
|
|
2024
Q2 | $421M | Buy |
773,276
+38,961
| +5% | +$20.4M | 1.3% | 14 |
|
|
2024
Q1 | $384M | Buy |
734,315
+3,109
| +0.4% | +$1.55M | 1.21% | 15 |
|
|
2023
Q4 | $348M | Buy |
731,206
+26,277
| +4% | +$11.7M | 1.18% | 17 |
|
|
2023
Q3 | $301M | Sell |
704,929
-12,802
| -2% | -$5.69M | 1.16% | 17 |
|
|
2023
Q2 | $318M | Sell |
717,731
-2,386
| -0.3% | -$1M | 1.17% | 14 |
|
|
2023
Q1 | $295M | Buy |
720,117
+9,217
| +1% | +$3.68M | 1.18% | 12 |
|
|
2022
Q4 | $272M | Sell |
710,900
-3,070
| -0.4% | -$1.18M | 1.18% | 13 |
|
|
2022
Q3 | $255M | Buy |
713,970
+46,770
| +7% | +$18.6M | 1.17% | 12 |
|
|
2022
Q2 | $252M | Buy |
667,200
+45,123
| +7% | +$18.5M | 1.12% | 13 |
|
|
2022
Q1 | $281M | Sell |
622,077
-17,283
| -3% | -$7.69M | 0.98% | 16 |
|
|
2021
Q4 | $304M | Buy |
639,360
+95,119
| +17% | +$43.7M | 0.95% | 18 |
|
|
2021
Q3 | $234M | Buy |
544,241
+10,805
| +2% | +$4.77M | 0.8% | 24 |
|
|
2021
Q2 | $228M | Buy |
533,436
+9,348
| +2% | +$3.9M | 0.79% | 22 |
|
|
2021
Q1 | $208M | Sell |
524,088
-29,772
| -5% | -$11.5M | 0.78% | 24 |
|
|
2020
Q4 | $207M | Buy |
553,860
+5,969
| +1% | +$2.12M | 0.76% | 24 |
|
|
2020
Q3 | $183M | Sell |
547,891
-7,955
| -1% | -$2.64M | 0.78% | 22 |
|
|
2020
Q2 | $171M | Sell |
555,846
-15,689
| -3% | -$4.59M | 0.82% | 24 |
|
|
2020
Q1 | $147M | Buy |
571,535
+23,445
| +4% | +$7.15M | 0.92% | 21 |
|
|
2019
Q4 | $176M | Buy |
548,090
+6,269
| +1% | +$1.93M | 0.91% | 20 |
|
|
2019
Q3 | $161M | Buy |
541,821
+11,105
| +2% | +$3.28M | 0.93% | 20 |
|
|
2019
Q2 | $156M | Sell |
530,716
-6,733
| -1% | -$1.94M | 0.89% | 20 |
|
|
2019
Q1 | $152M | Sell |
537,449
-11,349
| -2% | -$3.08M | 0.93% | 19 |
|
|
2018
Q4 | $137M | Buy |
548,798
+35,542
| +7% | +$9.58M | 1% | 17 |
|
|
2018
Q3 | $149M | Sell |
513,256
-15,772
| -3% | -$4.49M | 0.91% | 18 |
|
|
2018
Q2 | $144M | Sell |
529,028
-10,943
| -2% | -$2.96M | 0.98% | 16 |
|
|
2018
Q1 | $142M | Sell |
539,971
-11,196
| -2% | -$3.06M | 1% | 17 |
|
|
2017
Q4 | $147M | Buy |
551,167
+5,780
| +1% | +$1.5M | 1% | 19 |
|
|
2017
Q3 | $137M | Buy |
545,387
+15,961
| +3% | +$3.93M | 1.03% | 15 |
|
|
2017
Q2 | $128M | Sell |
529,426
-12,483
| -2% | -$2.99M | 0.96% | 16 |
|
|
2017
Q1 | $128M | Sell |
541,909
-7,734
| -1% | -$1.8M | 1.03% | 14 |
|
|
2016
Q4 | $123M | Buy |
549,643
+195,009
| +55% | +$42.6M | 1.1% | 11 |
|
|
2016
Q3 | $76.7M | Sell |
354,634
-15,520
| -4% | -$3.35M | 0.68% | 31 |
|
|
2016
Q2 | $77.5M | Sell |
370,154
-30,766
| -8% | -$6.38M | 0.72% | 30 |
|
|
2016
Q1 | $82.4M | Buy |
400,920
+34,168
| +9% | +$6.67M | 0.78% | 24 |
|
|
2015
Q4 | $74.8M | Buy |
366,752
+15,080
| +4% | +$3.1M | 0.7% | 31 |
|
|
2015
Q3 | $67.4M | Sell |
351,672
-1,206,719
| -77% | -$245M | 0.58% | 36 |
|
|
2015
Q2 | $321M | Buy |
1,558,391
+265,095
| +20% | +$55.7M | 0.48% | 25 |
|
|
2015
Q1 | $267M | Buy |
1,293,296
+185,253
| +17% | +$38.2M | 0.41% | 42 |
|
|
2014
Q4 | $228M | Buy |
1,108,043
+343,283
| +45% | +$69M | 0.37% | 51 |
|
|
2014
Q3 | $151M | Buy |
764,760
+53,415
| +8% | +$10.6M | 0.26% | 106 |
|
|
2014
Q2 | $139M | Buy |
711,345
+64,168
| +10% | +$12.2M | 0.23% | 136 |
|
|
2014
Q1 | $121M | Buy |
647,177
+160,148
| +33% | +$29.4M | 0.2% | 155 |
|
|
2013
Q4 | $90M | Buy |
487,029
+116,617
| +31% | +$20.6M | 0.15% | 206 |
|
|
2013
Q3 | $62.2M | Buy |
370,412
+78,925
| +27% | +$13.2M | 0.11% | 272 |
|
|
2013
Q2 | $46.8M | Buy |
+291,487
| New | +$47M | 0.09% | 326 |
|
Other funds holding SPY
William Blair & Company's SPY Position: Q1 2026 in Review
William Blair & Company reduced its State Street SPDR S&P 500 ETF Trust (SPY) stake by 1.5% in Q1 2026, selling an estimated $8.5M and leaving 845,294 shares worth $550M. The position accounts for 1.58% of the portfolio, ranked #10.
William Blair & Company first reported a position in SPY in Q2 2013 and has held it in 52 quarters since. The position peaked at $585M in Q4 2025. 4,558 funds tracked by Wall St. Rank hold SPY as of Q1 2026.
- William Blair & Company held 845,294 shares of State Street SPDR S&P 500 ETF Trust worth $550M as of Q1 2026.
- William Blair & Company sold 12,509 State Street SPDR S&P 500 ETF Trust shares in Q1 2026, an estimated $8.5M.
- State Street SPDR S&P 500 ETF Trust made up 1.58% of William Blair & Company's portfolio in Q1 2026, its #10 holding.
- William Blair & Company first reported a position in State Street SPDR S&P 500 ETF Trust in Q2 2013 and has held it in 52 quarters since.
- William Blair & Company's State Street SPDR S&P 500 ETF Trust position peaked at $585M in Q4 2025.
- 4,558 funds tracked by Wall St. Rank held State Street SPDR S&P 500 ETF Trust as of Q1 2026.
Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.