So is it fair to say CBOE p/c ratio is also indicative of an upcoming short-squeeze because it's pointing to shorts digging their heels before they get blown away? Is that a fair way to put it in your opinion?
I'm not sure.
As far as I understand, CBOE p/c is more of a general macro indicator. Suspect this run up was related to the political issues that occurred (N.Korea, etc...). However as we pass these macro negatives, I suspect there will be a burst of optimism that will come afterwards (and maybe IRS refunds). And in that case there could be a run up of the market as a whole.
Now as for Tesla, if there's general market optimism coupled with good news from Tesla, that could bring in more retail investors. This could create the impetus for a short squeeze, whether the shorts are digging in their heels or not.
FWIW, Hirsch in his Stock Almanac has almost all next week a bullish week for the major indices (Dow, NASDAQ, S&P). I believe except for Monday. So it maybe a "lift all boats" scenario.