Sumber Data
Setiap angka di situs ini dapat ditelusuri ke salah satu sumber di bawah ini, atau ke derivasi terdokumentasi kami sendiri dari sumber-sumber tersebut. Data berlisensi mentah dan metrik turunan kami disimpan dan diberi label secara terpisah.
| Sumber | Yang disediakannya | Ketepatan waktu |
|---|---|---|
| Cboe (delayed quotes) | Full options chains per underlying: bid/ask, last, volume, open interest, implied volatility and greeks per contract, plus the delayed underlying price used for chain-derived metrics | Delayed ~15+ min; core symbols refreshed hourly in market hours, full universe every 3 hours, definitive snapshot after each close |
| Financial Modeling Prep | Equity/ETF quotes, daily closing-price history (index history via ^GSPC, ^NDX, ^RUT, ^VIX), company profiles, earnings dates & EPS/revenue estimates and actuals, per-symbol news aggregation | Delayed, typically 15–20+ min; quotes hourly, history and earnings daily |
| Options Band metrik turunan | Expected moves, IV30, realized volatility, skew, put/call ratios, concentration measures, probability estimates, the append-only snapshot database — computed from the sources above, versioned (current: em-1.0) | Computed at each refresh; snapshots daily after the close · Metodologi |
| Feed berita umum | CNBC, MarketWatch, Yahoo Finance and per-symbol outlet aggregation — always credited and linked out; press-release wires and rating mills blocklisted | Per jam |
Kesehatan penyedia data dan waktu keberhasilan terakhir dipantau secara internal; modul yang sudah usang ditandai di halaman masing-masing, bukan diganti secara diam-diam. Data bisa tidak lengkap atau direvisi oleh sumbernya kapan saja; verifikasi ke sumber utama sebelum mengambil tindakan.