Speaking of battery stocks, I traded this one earlier this year. Sold way too soon not understanding its potential:
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On the day I noticed it, it was up on a government contract, rising from 40 cents to 1.4. I bought in the next day under 2 and sold for a small loss thinking it was an overpriced dog (I still think its an overpriced dog) that would be held back because it was already a $100M market cap and I did not think sales justified that price.
Had you bought the first day under $1.00 (and assuming you did not sell), you would be sitting on gains of 500% to 1000% in 30 days. Today the MC is over $1B !
I would love to buy puts on KULR but there are better opportunities out there than try to short the stock.