get_technical_indicators

io.github.aatharva16/dalalos · Verify this server

Get moving averages, RSI, MACD, Bollinger Bands, beta, and circuit-filter band/hit-days for an Indian stock. Accepts NSE symbol, ISIN, or BSE code. Moving averages (sma_50/sma_100/sma_200), `rsi_14` (Wilder's 14-period RSI), `macd` (12/26/9 EMA line/signal/histogram), `bollinger_bands` (20-day, 2-stdev middle/upper/lower + percent_b), and `beta` (regressed against NSE's own Nifty 50 daily close series over the trailing ~1Y of paired trading days; `beta_benchmark` names it) are all mechanically computed from the split/bonus-adjusted daily close series. `circuit_band_pct`/`circuit_band_as_of`/`circuit_hit_days` use the RAW (unadjusted) close series and are NSE's own per-security circuit-filter data, not derived from bhavcopy. NSE publishes only a CURRENT snapshot with no historical archive, so this pipeline's own daily captures are the only source of band history and only exist from whenever this deployment started capturing them: * `circuit_band_pct` is null for TWO DIFFERENT reasons — check `circuit_band_as_of` to tell them apart. `circuit_band_as_of` present + `circuit_band_pct` null means this security genuinely has NSE's "No Band" designation (no static daily price band applies — typically a large/liquid, F&O-eligible name; this is a complete, real answer, NOT missing data). `circuit_band_as_of` null means no band has been captured for this security AT ALL yet (also named in `insufficient_history`) — do not conflate the two. * `circuit_hit_days` is a list of `{trade_date, close, prev_close, pct_change, band_pct}` for RAW-close days that plausibly touched that day's captured band (a small tolerance absorbs NSE's tick-size rounding of the actual limit price off the raw percentage) — a descriptive flag that trading was likely constrained that day, not a claim about why. An indicator needing more history than is cached yet (e.g. sma_200 on a recently-listed stock, beta when too few dates overlap the Nifty 50 series, or circuit-band data for a security with no captured band day yet) is null/empty and named in `insufficient_history` rather than computed or fabricated on a short series. Pure math, no verdicts/signals.