# Data is not adjusted for splits despite adjustment="split" flag **URL:** \ **Category:** Alpaca Market Data\ **Created:** [December 19, 2021, 9:06am UTC](https://forum.alpaca.markets/t/data-is-not-adjusted-for-splits-despite-adjustment-split-flag/7753 "2021-12-19T09:06:13Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![rysskoczylas](https://avatars.discourse-cdn.com/v4/letter/r/c2a13f/32.png) [@rysskoczylas](https://forum.alpaca.markets/u/rysskoczylas)\ **Post date:** [December 19, 2021, 9:06am UTC](https://forum.alpaca.markets/t/data-is-not-adjusted-for-splits-despite-adjustment-split-flag/7753/1 "2021-12-19T09:06:13Z")
I am getting unadjusted values despite using the `adjustment=split` option. ```auto df = alpaca_api.get_bars( ["RMBL"], TimeFrame(1, TimeFrameUnit.Day), "2020-05-15", "2020-06-30", adjustment="split", ).df ``` As you see the split happened on the 2020-05-20, but is not adjusted, which renders my ML model useless: ![Screenshot 2021-12-19 at 09.45.52](https://us1.discourse-cdn.com/flex020/uploads/alp/original/2X/f/fe6acd3e73d89e0042287b69dcf1172c0b9e0931.png) ---
**Author:** ![Gergely\_Alpaca](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.alpaca.markets/gergely_alpaca/32/3210_2.png) [@Gergely\_Alpaca](https://forum.alpaca.markets/u/Gergely_Alpaca)\ **Post date:** [August 18, 2022, 6:00am UTC](https://forum.alpaca.markets/t/data-is-not-adjusted-for-splits-despite-adjustment-split-flag/7753/2 "2022-08-18T06:00:28Z")
Hey 👋 This seems to have been resolved since, right? ![Screenshot 2022-08-18 at 7.59.31](https://us1.discourse-cdn.com/flex020/uploads/alp/original/2X/6/6439c5d54ef50b5c1c6d2dddf102bdb10029f906.jpeg) ---
**Author:** ![Lee](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.alpaca.markets/lee/32/4682_2.png) [@Lee](https://forum.alpaca.markets/u/Lee)\ **Post date:** [April 6, 2023, 7:22pm UTC](https://forum.alpaca.markets/t/data-is-not-adjusted-for-splits-despite-adjustment-split-flag/7753/3 "2023-04-06T19:22:23Z")
I’m seeing this same issue today, on TQQQ, looking at the split which occurred on 2022-01-13. I’ve tried raw, split, dividend, and all. ---
**Author:** ![Lee](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.alpaca.markets/lee/32/4682_2.png) [@Lee](https://forum.alpaca.markets/u/Lee)\ **Post date:** [April 6, 2023, 7:29pm UTC](https://forum.alpaca.markets/t/data-is-not-adjusted-for-splits-despite-adjustment-split-flag/7753/4 "2023-04-06T19:29:36Z")
Update: I was using the “SIP” data feed for my requests, but I don’t currently have a paid SIP subscription. Switching to the “IEX” feed made the “split” adjustment work as expected. After digging a little bit deeper, I realized that it’s because SIP has more data, including 00:00:00 - 00:59:59 on 1/13/2022. This one hour, for whatever reason, is unadjusted for the split. ---
**Author:** ![Alessandro\_Mizzoni](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.alpaca.markets/alessandro_mizzoni/32/7357_2.png) [@Alessandro\_Mizzoni](https://forum.alpaca.markets/u/Alessandro_Mizzoni)\ **Post date:** [July 3, 2025, 2:42pm UTC](https://forum.alpaca.markets/t/data-is-not-adjusted-for-splits-despite-adjustment-split-flag/7753/5 "2025-07-03T14:42:26Z")
> [@rysskoczylas](#): > > `RMBL` I have the same issue. If it helps, I’ve created a script to identify stocks with a bug in the adjustment, and I’ve identified the following symbols. I hope this is especially useful for those applying ML models. MISS\_ADJ = [ “SIRI”, #2024-09-09 “GSAT”, #2021-02-08 “XPRO”, #2021-10-04 “TT”, #2020-03-02, “EGO”, #2018-12-31 “BW”, #2019-07-22 “ELP”, #2021-04-26 “RCEL”, #2020-06-29, “AIFU”, #2025-05-19, “ALT”, #2018-09-17 “CIVI” #2017-05-01 ] ---
**Author:** ![Gergely\_Alpaca](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.alpaca.markets/gergely_alpaca/32/3210_2.png) [@Gergely\_Alpaca](https://forum.alpaca.markets/u/Gergely_Alpaca)\ **Post date:** [July 7, 2025, 8:39am UTC](https://forum.alpaca.markets/t/data-is-not-adjusted-for-splits-despite-adjustment-split-flag/7753/6 "2025-07-07T08:39:26Z")
Thank you so much @Alessandro_Mizzoni for collecting these ❤ I went over them one by one and fixed them: - SIRI: added missing 2024-09-10 1:10 reverse split 🔴 - GSAT: we already had the 2021-02-11 1:15 reverse split 🟢 Note that the price moved quite a lot the days before the split. - XPRO: added missing 2021-10-04 1:6 reverse split 🔴 - TT: we had two issues here 🔴 - the `asof` symbol mapping was incorrect: it chained GDI → TT. I fixed it to GDI → IR and IR → TT - added the missing 2020-03-02 1289:1000 forward split - EGO: the 2018-12-31 split was incorrectly a 5:1 forward split, changed it to a 1:5 reverse split 🔴 - BW: added missing 2019-07-24 1:10 reverse split 🔴 - ELP: added missing 2021-04-28 1:5 reverse split 🔴 - RCEL: added missing 2020-06-30 1:5 reverse split 🔴 - AIFU: added missing 2025-05-19 1:20 reverse split 🔴 - ALT: we already had the 2018-09-14 1:30 reverse split 🟢 - CIVI: added missing 2017-05-01 1000:111588 reverse split 🔴 ---
**Author:** ![Alessandro\_Mizzoni](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.alpaca.markets/alessandro_mizzoni/32/7357_2.png) [@Alessandro\_Mizzoni](https://forum.alpaca.markets/u/Alessandro_Mizzoni)\ **Post date:** [November 25, 2025, 9:26am UTC](https://forum.alpaca.markets/t/data-is-not-adjusted-for-splits-despite-adjustment-split-flag/7753/7 "2025-11-25T09:26:41Z")
hi @Gergely_Alpaca my sanity check script find a new one split on stock: MNMD Aug 29, 2022 =\> 1:15 Stock Splits Alpaca API: { “c”: 0.791, “h”: 0.8938, “l”: 0.75, “n”: 27704, “o”: 0.8901, “t”: “2022-08-26T04:00:00Z”, “v”: 17455546, “vw”: 0.814648 }, { “c”: 12.01, “h”: 12.88, “l”: 11.47, “n”: 11991, “o”: 11.5, “t”: “2022-08-29T04:00:00Z”, “v”: 963128, “vw”: 12.104798 }, ---
**Author:** ![Gergely\_Alpaca](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.alpaca.markets/gergely_alpaca/32/3210_2.png) [@Gergely\_Alpaca](https://forum.alpaca.markets/u/Gergely_Alpaca)\ **Post date:** [November 25, 2025, 10:27am UTC](https://forum.alpaca.markets/t/data-is-not-adjusted-for-splits-despite-adjustment-split-flag/7753/8 "2025-11-25T10:27:07Z")
Thank you @Alessandro_Mizzoni for reporting this issue. The missing reverse split has been added to our database. ```json $ curl -s -H "APCA-API-KEY-ID: ${APCA_API_KEY_ID}" -H "APCA-API-SECRET-KEY: ${APCA_API_SECRET_KEY}" \ "${APCA_API_DATA_URL}/v2/stocks/bars?symbols=MNMD&timeframe=1Day&adjustment=split&start=2022-08-26&end=2022-08-29" | jq . { "bars": { "MNMD": [ { "c": 11.87, "h": 13.41, "l": 11.25, "n": 27704, "o": 13.35, "t": "2022-08-26T04:00:00Z", "v": 1163703, "vw": 12.22 }, { "c": 12.01, "h": 12.88, "l": 11.47, "n": 11991, "o": 11.5, "t": "2022-08-29T04:00:00Z", "v": 963128, "vw": 12.104798 } ] }, "next_page_token": null } ```