Why are Bid/Asks Significantly lower than the Bid/Asks on other platforms?



Alpaca SDK Version

Other Environment Details
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The Bid/Asks for MCO have stayed the same for the past hour, but the latest trades have all been significantly higher than the Bid Ask levels on the Alpaca platform. I checked whether there was a difference between the Bid/Asks in the paper trading and the live trading and there is not.

I have also checked the Bid/Asks for MCO on some other platforms i.e. Yahoo Finance/Robinhood/etc. and it is significantly higher than the current bid ask levels.


Bid: $287.77
Ask: $287.78

Yahoo Finance

Bid 293.74 x 1100
Ask 294.01 x 1100

Paper or Live Tradng?
Currently using paper trading but the problem is on both.

Example Code
N/A for this problem