SPDR S&P 500 ETF TR's ticker is and the CUSIP is 78462F903. A total of 24 filers reported holding SPDR S&P 500 ETF TR in Q2 2018. The put-call ratio across all filers is - and the average weighting 12.4%.
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| AKUNA SECURITIES LLC | 9,281,000 | $3,967,441,880 | 32.16% |
| CenterStar Asset Management, LLC | 350,900 | $150,002,732 | 30.98% |
| CTC LLC | 891,074 | $38,091,631,352 | 21.99% |
| Optiver Holding B.V. | 75,043,700 | $32,079,680,876 | 21.75% |
| Twin Tree Management, LP | 18,514,400 | $7,914,535,915 | 17.78% |
| IMC-Chicago, LLC | 28,932,400 | $12,368,022,352 | 10.96% |
| SIMPLEX TRADING, LLC | 21,223,800 | $9,055,583 | 7.12% |
| Sea Otter Advisors LLC | 20,000 | $8,549,600 | 4.77% |
| JANE STREET GROUP, LLC | 33,233,800 | $14,206,784,824 | 4.59% |
| Swan Global Investments, LLC | 988,400 | $99,795,592 | 3.20% |