As of 30 Sep 2025, 648 institutional investors reported holding 124,154,209 shares of SPDR SERIES TRUST - S&P BIOTECH (XBI).
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 2,292,194 | $279,444,175 | +$43,482,854 | $121.93 | 136 |
| 2025 Q3 | 124,154,209 | $12,441,228,390 | +$858,808,620 | $100.20 | 648 |
| 2025 Q2 | 117,272,814 | $9,726,205,378 | +$539,755,851 | $82.93 | 617 |
| 2025 Q1 | 113,337,685 | $9,191,574,908 | +$456,960,963 | $81.10 | 674 |
| 2024 Q4 | 108,924,755 | $9,809,823,063 | -$300,688,150 | $90.06 | 729 |
| 2024 Q3 | 102,834,498 | $10,159,737,396 | +$652,372,762 | $98.80 | 763 |
| 2024 Q2 | 98,866,861 | $9,167,210,152 | -$558,257,150 | $92.71 | 753 |
| 2024 Q1 | 102,559,902 | $9,730,962,931 | +$1,468,652,699 | $94.89 | 773 |
| 2023 Q4 | 84,306,665 | $7,539,229,687 | -$349,573,235 | $89.29 | 742 |
| 2023 Q3 | 90,734,822 | $6,629,175,325 | +$306,052,362 | $73.02 | 674 |
| 2023 Q2 | 86,009,843 | $7,155,899,429 | -$901,307,109 | $83.20 | 704 |
| 2023 Q1 | 93,934,856 | $7,160,468,506 | +$183,962,514 | $76.21 | 703 |
| 2022 Q4 | 92,607,412 | $7,683,091,727 | +$1,097,278,517 | $83.00 | 734 |
| 2022 Q3 | 81,392,001 | $6,461,190,127 | -$142,863,815 | $79.32 | 691 |
| 2022 Q2 | 84,808,968 | $6,299,641,637 | +$499,722,376 | $74.27 | 684 |
| 2022 Q1 | 78,409,946 | $7,048,358,412 | +$613,537,361 | $89.88 | 684 |
| 2021 Q4 | 67,337,299 | $7,540,217,313 | +$833,516,534 | $111.96 | 688 |
| 2021 Q3 | 62,933,735 | $7,912,765,727 | -$446,273,061 | $125.71 | 628 |
| 2021 Q2 | 66,775,493 | $9,041,282,740 | -$2,201,621,705 | $135.40 | 653 |
| 2021 Q1 | 83,842,788 | $11,371,792,438 | -$1,202,147,433 | $135.65 | 640 |
| 2020 Q4 | 85,648,877 | $12,056,920,896 | +$1,380,909,227 | $140.78 | 642 |
| 2020 Q3 | 80,394,761 | $8,962,587,757 | -$25,560,323 | $111.43 | 550 |
| 2020 Q2 | 83,807,625 | $9,381,950,719 | -$1,103,772,057 | $111.95 | 520 |
| 2020 Q1 | 95,230,658 | $7,372,384,721 | +$1,588,421,424 | $77.44 | 439 |
| 2019 Q4 | 66,225,002 | $6,293,311,475 | +$140,285,609 | $95.11 | 470 |
| 2019 Q3 | 71,344,848 | $5,443,126,189 | +$152,715,865 | $76.25 | 401 |
| 2019 Q2 | 66,459,439 | $5,822,066,803 | -$555,668,077 | $87.71 | 422 |
| 2019 Q1 | 69,796,194 | $6,319,037,242 | +$552,093,388 | $90.54 | 441 |
| 2018 Q4 | 60,582,473 | $4,347,765,110 | +$28,865,882 | $71.75 | 422 |
| 2018 Q3 | 59,564,593 | $5,707,577,717 | -$130,898,195 | $95.87 | 431 |
| 2018 Q2 | 60,464,478 | $5,753,465,507 | +$168,919,368 | $95.19 | 428 |
| 2018 Q1 | 58,413,799 | $5,125,122,298 | +$1,134,798,005 | $87.73 | 410 |
| 2017 Q4 | 45,744,125 | $3,883,354,548 | +$135,883,173 | $84.87 | 396 |
| 2017 Q3 | 43,586,046 | $3,771,528,836 | -$268,277,033 | $86.57 | 350 |
| 2017 Q2 | 46,611,235 | $3,597,430,281 | +$167,666,485 | $77.18 | 313 |
| 2017 Q1 | 44,582,122 | $3,090,994,782 | +$589,775,116 | $69.34 | 293 |
| 2016 Q4 | 36,596,491 | $2,167,924,581 | -$634,251,956 | $59.19 | 275 |
| 2016 Q3 | 46,993,375 | $3,114,104,096 | +$342,475,890 | $66.29 | 226 |
| 2016 Q2 | 42,802,426 | $2,315,662,737 | -$119,547,543 | $54.08 | 201 |
| 2016 Q1 | 44,401,036 | $2,294,153,280 | +$45,889,608 | $51.66 | 189 |
| 2015 Q4 | 43,460,778 | $3,048,389,350 | -$589,465,720 | $70.20 | 196 |
| 2015 Q3 | 52,237,407 | $3,252,514,720 | +$2,245,643,754 | $62.25 | 194 |
| 2015 Q2 | 15,680,794 | $3,954,162,331 | +$865,792,932 | $252.24 | 191 |
| 2015 Q1 | 12,250,632 | $2,761,923,747 | +$193,679,439 | $225.50 | 178 |
| 2014 Q4 | 11,583,784 | $2,160,286,255 | +$133,955,346 | $186.47 | 144 |
| 2014 Q3 | 10,777,933 | $1,680,658,051 | +$65,546,789 | $155.97 | 128 |
| 2014 Q2 | 10,369,766 | $1,596,613,069 | -$148,177,705 | $153.99 | 121 |
| 2014 Q1 | 11,363,570 | $1,619,000,068 | +$284,673,346 | $142.48 | 130 |