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DFFNhistorical intraday data

DelistedDiffusion Pharmaceuticals IncNasdaq

Diffusion Pharmaceuticals Inc (DFFN) is a common stock. It was delisted on August 17, 2023 from Nasdaq. Its last trading day on file was August 16, 2023. DFFN has 1,696 trading days on file, from November 9, 2016 to August 16, 2023, with 3,589,629 trades. There are 265,345 1-minute bars on file.

On file

First day
2016-11-09
Last day
2023-08-16
Trading days
1,696
Trades
3,589,629
1-minute bars
265,345
Bars, about
4 MB
Trades, about
49 MB
Quotes, about
29 MB

Sizes are approximate: this ticker’s share of the Parquet files.

Trading history

Trades per calendar year. Busiest year: 2021, with 1,268,369 trades over 252 trading days.

Symbols get reused, so the history under DFFN is not always one company.

DFFN by year

YearTrading days on fileTrades
201632666
2017249234,791
2018251207,242
2019252440,865
20202531,230,373
20212521,268,369
2022251168,173
202315639,150