Healthcare Sector
Market Tracker
Represents the strikes that had the highest premium of whale flow (on the ASK side) over the past 5 trading days.
Represents the strikes that had the highest premium of whale flow (on the BID side) over the past 5 trading days.
Total Open Interest of Calls & Puts across all strikes and expirations over the past 16 trading days.
| Expires | Type | Strike | OI | Change | Percent |
|---|---|---|---|---|---|
| 04/17/2026 | PUT | $0.50 | 230 | +200 | +666.67% |
| 04/17/2026 | CALL | $0.50 | 529 | +10 | +1.93% |
| 04/17/2026 | CALL | $1.50 | 3,429 | +6 | +0.18% |
| 02/20/2026 | CALL | $3.00 | 2 | +1 | +100.00% |
| 02/20/2026 | CALL | $4.00 | 2 | +1 | +100.00% |
| 01/16/2026 | CALL | $1.00 | 4,714 | 0 | |
| 07/17/2026 | CALL | $4.00 | 26 | 0 | |
| 07/17/2026 | PUT | $1.00 | 210 | 0 | |
| 07/17/2026 | PUT | $2.00 | 0 | 0 | |
| 07/17/2026 | PUT | $3.00 | 0 | 0 | |
| 07/17/2026 | PUT | $4.00 | 0 | 0 | |
| 01/16/2026 | CALL | $0.50 | 269 | -5 | -1.82% |
Contracts with largest changes in open interest from the previous trading day to the current/most recent.
| Name | Pct Held | Shares | Total |
|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 2.98% | 3.78M | 5.1M |
| Vanguard Extended Market Index Fund | 1.33% | 1.69M | 2.28M |
| Fidelity Extended Market Index Fund | 0.53% | 670.79k | 905.56k |
| BlackRock Advantage Small Cap Core Fund | 0.27% | 340.5k | 459.68k |
| iShares Micro Cap ETF | 0.20% | 258.2k | 348.56k |
| Fidelity Total Market Index Fund | 0.14% | 182.91k | 246.93k |
| Fidelity Series Total Market Index Fund | 0.11% | 142.17k | 191.93k |
| Vanguard Balanced Index Fund | 0.08% | 98.1k | 132.43k |
| Vanguard Institutional Index-Inst Total Stock Market Ind | 0.07% | 87.56k | 118.2k |
| Fidelity NASDAQ Composite Index Fund | 0.05% | 65.69k | 88.68k |
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