The bankruptcy of the Mt.Gox bitcoin exchange, a fall in the Russian to a five-year low and a run-up in natural gas prices are some of the key news events from the past week.
The slide in the rouble came as tensions escalated in Ukraine. The latest developments saw Russian troops seize control of Crimea in a bloodless coup on Sunday. The threat of debt default by Ukraine further weighed on the Russian currency, as Russia holds $3 billion worth of Ukrainian debt issued last December.
(Read more: Bitcoinexchange Mt. Gox files for bankruptcy)
Meanwhile, bitcoin exchange Mt.Gox filed for bankruptcy in Japan on Friday. The Tokyo-based operator says it lost 750,000 of its customers' bitcoins and 100,000 of its own. Mt.Gox suspended withdrawals early last month due to a software glitch.
In the U.S., consumers saw a surge in natural gas prices, partly due to increased demand amid a prolonged stretch of bone-chilling temperatures. Investors were also worried that escalating geopolitical tension over Ukraine could curb energy supplies. Nymex natural gas futures for April delivery were trading just over $4.50 per million Btus on Friday.
(Read more: This explains thestrange action in natural gas)
Amid the uncertainty shrouding these fields, tell us which is your most risky trade?
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