DATA & METHODOLOGY
Evidence you can inspect.
Trading Desk
The desk uses Yahoo chart data on a best-effort basis. It checks metadata, source times, closed five-minute bars, session alignment, EMA 9/20, VWAP, relative volume and price structure. It currently requires 21 completed current-session bars; candidates cannot appear in the first 105 minutes. These are deterministic rules, not an autonomous AI analyst or a calibrated probability model.
Option-chain explorer
The explorer reuses the existing Celesys options engine: the existing NSE path for India and Yahoo Finance for US stocks and ETFs. It displays the nearest expiry actually returned. The separate US Tradier adapter remains opt-in and requires appropriate display permissions. Credentials stay on the server. The explorer never sends orders or infers a trade signal from OI or PCR.
The existing engine does not attach per-contract quote timestamps, so freshness remains unverified in both markets. Fetch time is displayed separately. Legacy zero/missing values are shown as dashes because their meaning is ambiguous. Modelled Greeks and placeholder OI changes are not displayed as provider facts. OI may update on a separate schedule. Data may be stale when markets are closed.
Coverage
India supports NIFTY, BANKNIFTY, FINNIFTY and SENSEX when the provider returns eligible contracts. US supports stock and ETF snapshots returned by the existing feed. Contract identifiers and multipliers are not attached by that engine; verify deliverables with your broker, especially for adjusted contracts. Missing values appear as a dash.
Paper practice and notifications
The desk's stock/ETF paper journal is saved in the browser. It uses simplified costs and observed prices; it cannot reproduce execution. Monitoring and browser alerts require the relevant page to stay open and visible. Option-chain exploration does not enable background alerts or options paper execution.
Validation
Software checks verify behavior such as blocking malformed data. They do not establish profitability. There is no independently audited out-of-sample track record. Legacy research tools have varying methodologies and data coverage; review their limitations individually.