sure, panic selling is possible in INTC, absolutely. Valuing INTC is easier, though, because it actually pays dividends and because it can be compared to other stocks.
Very true. That's why a stop loss to market is a total suicide in this market. Better do a stop loss to limit and if the limit fails, keep your coins and wait for better times...
BTC: $160B market cap, ~$5B traded/day
INTC: $200B market cap, ~$1B traded/day
So if there was panic selling of INTC, the stock would presumably dive deeper and lower than a panic sale of BTC...