William Blair & Company’s Vanguard S&P Small-Cap 600 ETF VIOO Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $4.11M | Buy |
35,817
+25,298
| +240% | +$2.97M | 0.01% | 546 |
|
|
2025
Q4 | $1.17M | Buy |
10,519
+5,298
| +101% | +$589K | ﹤0.01% | 896 |
|
|
2025
Q3 | $577K | Buy |
5,221
+1,790
| +52% | +$191K | ﹤0.01% | 1069 |
|
|
2025
Q2 | $347K | Hold |
3,431
| – | – | ﹤0.01% | 1209 |
|
|
2025
Q1 | $331K | Sell |
3,431
-13,140
| -79% | -$1.37M | ﹤0.01% | 1220 |
|
|
2024
Q4 | $1.76M | Buy |
16,571
+13,310
| +408% | +$1.47M | 0.01% | 739 |
|
|
2024
Q3 | $353K | Sell |
3,261
-280
| -8% | -$29.2K | ﹤0.01% | 1233 |
|
|
2024
Q2 | $348K | Buy |
3,541
+840
| +31% | +$82.6K | ﹤0.01% | 1216 |
|
|
2024
Q1 | $274K | Sell |
2,701
-199
| -7% | -$19.3K | ﹤0.01% | 1285 |
|
|
2023
Q4 | $288K | Hold |
2,900
| – | – | ﹤0.01% | 1269 |
|
|
2023
Q3 | $253K | Hold |
2,900
| – | – | ﹤0.01% | 1302 |
|
|
2023
Q2 | $266K | Buy |
2,900
+2
| +0.1% | +$175 | ﹤0.01% | 1295 |
|
|
2023
Q1 | $257K | Sell |
2,898
-322
| -10% | -$29.5K | ﹤0.01% | 1299 |
|
|
2022
Q4 | $279K | Hold |
3,220
| – | – | ﹤0.01% | 1257 |
|
|
2022
Q3 | $260K | Hold |
3,220
| – | – | ﹤0.01% | 1290 |
|
|
2022
Q2 | $274K | Hold |
3,220
| – | – | ﹤0.01% | 1311 |
|
|
2022
Q1 | $319K | Hold |
3,220
| – | – | ﹤0.01% | 1342 |
|
|
2021
Q4 | $338K | Hold |
3,220
| – | – | ﹤0.01% | 1374 |
|
|
2021
Q3 | $324K | Sell |
3,220
-252
| -7% | -$25.5K | ﹤0.01% | 1318 |
|
|
2021
Q2 | $360K | Sell |
3,472
-1,494
| -30% | -$153K | ﹤0.01% | 1277 |
|
|
2021
Q1 | $494K | Buy |
4,966
+24
| +0.5% | +$2.29K | ﹤0.01% | 1126 |
|
|
2020
Q4 | $415K | Buy |
4,942
+16
| +0.3% | +$1.21K | ﹤0.01% | 1144 |
|
|
2020
Q3 | $318K | Hold |
4,926
| – | – | ﹤0.01% | 1119 |
|
|
2020
Q2 | $308K | Hold |
4,926
| – | – | ﹤0.01% | 1081 |
|
|
2020
Q1 | $252K | Sell |
4,926
-224
| -4% | -$15.2K | ﹤0.01% | 1078 |
|
|
2019
Q4 | $392K | Buy |
5,150
+244
| +5% | +$18K | ﹤0.01% | 1082 |
|
|
2019
Q3 | $350K | Hold |
4,906
| – | – | ﹤0.01% | 1068 |
|
|
2019
Q2 | $350K | Buy |
4,906
+644
| +15% | +$45.5K | ﹤0.01% | 1104 |
|
|
2019
Q1 | $299K | Hold |
4,262
| – | – | ﹤0.01% | 1152 |
|
|
2018
Q4 | $268K | Hold |
4,262
| – | – | ﹤0.01% | 1125 |
|
|
2018
Q3 | $340K | Hold |
4,262
| – | – | ﹤0.01% | 1091 |
|
|
2018
Q2 | $325K | Hold |
4,262
| – | – | ﹤0.01% | 1082 |
|
|
2018
Q1 | $299K | Buy |
4,262
+790
| +23% | +$55.8K | ﹤0.01% | 1073 |
|
|
2017
Q4 | $242K | Hold |
3,472
| – | – | ﹤0.01% | 1204 |
|
|
2017
Q3 | $235K | Hold |
3,472
| – | – | ﹤0.01% | 1201 |
|
|
2017
Q2 | $222K | Hold |
3,472
| – | – | ﹤0.01% | 1302 |
|
|
2017
Q1 | $218K | Hold |
3,472
| – | – | ﹤0.01% | 1193 |
|
|
2016
Q4 | $216K | Buy |
+3,472
| New | +$204K | ﹤0.01% | 1128 |
|
Other funds holding VIOO
OWM
William Blair & Company's VIOO Position: Q1 2026 in Review
William Blair & Company increased its Vanguard S&P Small-Cap 600 ETF (VIOO) stake by 240% in Q1 2026, buying an estimated $2.97M and bringing the position to 35,817 shares worth $4.11M. The position accounts for 0.01% of the portfolio, ranked #546.
William Blair & Company first reported a position in VIOO in Q4 2016 and has held it in 38 quarters since. 379 funds tracked by Wall St. Rank hold VIOO as of Q1 2026.
- William Blair & Company held 35,817 shares of Vanguard S&P Small-Cap 600 ETF worth $4.11M as of Q1 2026.
- William Blair & Company bought 25,298 Vanguard S&P Small-Cap 600 ETF shares in Q1 2026, an estimated $2.97M.
- Vanguard S&P Small-Cap 600 ETF made up 0.01% of William Blair & Company's portfolio in Q1 2026, its #546 holding.
- William Blair & Company first reported a position in Vanguard S&P Small-Cap 600 ETF in Q4 2016 and has held it in 38 quarters since.
- 379 funds tracked by Wall St. Rank held Vanguard S&P Small-Cap 600 ETF as of Q1 2026.
Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.