I see LTC at 76 bucks, been adding slowly on the decline and that's a nice cheap price. Try to buy LTC at Coinbase, error returned "insufficient funds". Hmm that's strange. Check my bank, Chase, and the account. Funds are there. Try to transfer some more in because I want to buy a bunch. Cannot transfer "site is under maintenance" Hmm, never seen that before. Decide to try to use some BTC to buy LTC as the rate is nice. Poloniex says "BTC is currently under maintenance or experiencing wallet issues. Deposits and withdrawals will remain disabled as we work to find, test, and audit a solution. Thank you for your patience in the meantime.". NEVER seen them frezze the BTC wallet before!
So you can't buy at Coinbase. You can't use your bank funds. You can't arb at Poloniex. And this is all just a coincidence.
Mark my words, this is a bottom, if not THE bottom. Only explanation.