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 |
|---|---|---|---|---|---|
| 07/17/2026 | CALL | $155.00 | 551 | +235 | +74.37% |
| 09/18/2026 | CALL | $160.00 | 204 | +151 | +284.91% |
| 06/18/2026 | CALL | $185.00 | 152 | +125 | +462.96% |
| 06/18/2026 | CALL | $165.00 | 230 | +30 | +15.00% |
| 06/18/2026 | PUT | $140.00 | 329 | +21 | +6.82% |
| 07/17/2026 | PUT | $150.00 | 22 | +10 | +83.33% |
| 01/15/2027 | PUT | $130.00 | 8 | -2 | -20.00% |
| 12/18/2026 | CALL | $165.00 | 104 | -3 | -2.80% |
| 06/18/2026 | PUT | $210.00 | 9 | -4 | -30.77% |
| 06/18/2026 | PUT | $165.00 | 2 | -14 | -87.50% |
| 06/18/2026 | PUT | $160.00 | 33 | -15 | -31.25% |
| 09/18/2026 | CALL | $150.00 | 74 | -50 | -40.32% |
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 | 3.03% | 8.61M | 2.23B |
| Vanguard 500 Index Fund | 2.32% | 6.59M | 1.71B |
| Vanguard/Wellington Fund Inc. | 1.52% | 4.32M | 1.12B |
| Fidelity 500 Index Fund | 1.10% | 3.13M | 808.69M |
| Price (T.Rowe) Value Fund | 1.09% | 3.1M | 801.65M |
| SPDR S&P 500 ETF Trust | 1.08% | 3.07M | 794.48M |
| iShares Core S&P 500 ETF | 0.90% | 2.55M | 658.41M |
| Price (T.Rowe) U.S. Value Equity Trust | 0.88% | 2.5M | 647.27M |
| Vanguard Index-Value Index Fund | 0.86% | 2.45M | 633.78M |
| Parnassus Core Equity Fund | 0.85% | 2.41M | 622.32M |
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