API requests return flat OHLC and v=0, vw=0, n=0 for 146 tickers on May 3, 2018.
141 also return these zeros on May 2. The five exceptions, affected only on May 3, are: AGPU, EOCN, ESGS, NCNA, PWCM.
Complete list of the 146 confirmed affected tickers:
ABTS, ADRD, ADRU, AGNG, AGPU, AKTX, ALTY, AMRB, AQB, ASTC, ASV, AUBN, BANX, BLIN, BOSC, BYSI,
CAAS, CART, CD, CEZ, CFBK, CHNR, CODX, COWNZ, CPSH, CPTAG, CSB, CSWC, CSWCL, DBKO, DDIV, DELT,
DGRS, DLPN, DMRM, DSWL, DWFI, DWLV, DWTR, EBMT, EFOI, ELTK, EMCB, ENLV, EOCN, ESBK, ESGS, EVGN,
EXFO, FAB, FAD, FCA, FCAN, FCVT, FDBC, FDUSL, FLN, FMHI, FNK, FNY, FORK, FTAG, FTHI, FTQI,
FTRI, FTXH, FYT, GFNSL, GLDI, GOLD, HCAPZ, HLG, HWBK, IBKCO, IBKCP, ICMB, ICUI, IDCC, IMCV,
INTG, IPIC, JSMD, JVA, KCAPL, KOSS, KRYS, KZIA, LEGR, LINK, LVO, MATH, MBSD, MILN, MMAC, MPB,
MRBK, MSBF, NCNA, NEGG, NEWTI, NFTY, NGHCO, NOVNQ, OBCI, OLD, PAVM, PBHC, PDLB, PEZ, PFI, PPSI,
PRSS, PSCD, PSCM, PSCU, PTF, PWCM, PY, QQXT, RCMT, RELV, RILYG, RILYZ, RLJE, RNEM, RNRG, RVEN,
SDVY, SFBC, SHRY, SKOR, SKYS, SSFN, SUSC, SVBI, TCBIL, THST, TRMT, TVIZ, UBOH, UG, USMC, VALU,
YECO, YRIV, ZBIO
Reproduction:
GET https://data.alpaca.markets/v2/stocks/ICUI/bars?timeframe=1Day&feed=sip&adjustment=raw&start=2018-05-02T00:00:00-04:00&end=2018-05-02T23:59:59-04:00&limit=1
Exact response, unchanged:
{"bars":[{"c":256.85,"h":256.85,"l":256.85,"n":0,"o":256.85,"t":"2018-05-02T04:00:00Z","v":0,"vw":0}],"next_page_token":null,"symbol":"ICUI"}
A fresh Yahoo Finance query returns ICUI’s May 2 bar as:
| Open | High | Low | Close | Volume |
|---|---|---|---|---|
| 256.35 | 259.70 | 254.35 | 257.50 | 114,800 |
Raw and split,spin-off queries reproduce the issue for ICUI, IDCC, and ADRD. Their SIP hourly bars are also missing on both dates.
Separately, ORPN returned no bars for the May 1–9 query window; please check its historical availability/mapping.
These results cover a 147-symbol sample; the full affected universe may be larger. Please investigate, backfill the historical data, and confirm the full ticker/date scope.