Crypto riddle of the day

I’m not gold, but many treat me like a reserve.
I’m not a bank, but I can store value.
I have 21 million as my limit,
and today I’m close to US$83 thousand.
The market watches me as oil and interest rates put pressure.
Who am I?
#bitcoin #newscrypto #Binance #satoshiNakamato $BTC