Tesla Inc's biggest weekly gain since 2013 gave investors a glimmer of hope that after a disastrous 2022, the worst may finally be over for Elon Musk's electric carmaker. The stock surged 33% this week, its biggest gain since a 41% surge in May 2013. The stock closed up 11% at $177.88 on Friday, its highest level since December 9, and was up 65% from its January 3 closing low of $108.10. It's not easy coming back here. Better-than-expected quarterly results, assurances from Musk, and a $5 billion credit commitment helped shake off last year's gloom. A big hurdle for the stock comes next week when the Federal Reserve is expected to raise interest rates and give information on the path of future hikes. A harsh tone could derail Tesla's strong start to the year. Derivatives traders don't seem worried. Relative to a bet that shares will fall 10% next month, options cost the least since August, according to data compiled by Bloomberg.