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Can one use dollar cost averaging to make money with something highly volatile?
As you mentioned in the title, what you're asking about comes down to volatility.  DCA when purchasing stock is one way of dealing with volatility, but it's only profitable if the financial instrument can be sold higher than your sunk costs.  Issues to be concerned with: Let's suppose you're buying a stock listed on the NYSE called FOO (this is a completely fake example).  Over the last six days, the average value of this stock was exactly $1.00Note 1.  Over six trading days you put $100 per day into this stockNote 2: At market close on January 11th, you have 616 shares of FOO.  You paid $596.29 for it, so your average cost (before fees) is: $596.29 / 616 = $0.97 per share Let's look at this including your trading fees: ($596.29 + $30) / 616 = $1.01 per share. When the market opens on January 12th, the quote on FOO could be anything.  Patents, customer wins, wars, politics, lawsuits, press coverage, etc... could cause the value of FOO to fluctuate.  So, let's just roll with the assumption that past performance is consistent: Selling FOO at $0.80 nets: (616 * $0.80 - $5) - ($596.29 + $30) =  $123.49 Loss Selling FOO at $1.20 nets: (616 * $1.20 - $5) - ($596.29 + $30) =  $107.90 Profit Every day that you keep trading FOO, those numbers get bigger (assuming FOO is a constant value).  Also remember, even if FOO never changes its average value and volatility, your recoverable profits shrink with each transaction because you pay $5 in fees for every one. Speaking from experience, it is very easy to paper trade.  It is a lot harder when you're looking at the ticker all day when FOO has been $0.80 - $0.90 for the past four days (and you're $300 under water on a $1000 portfolio).  Now your mind starts playing nasty games with you. If you decide to try this, let me give you some free advice: Unless you have some research (such as support / resistance information) or data on why FOO is a good buy at this price, let's be honest: you're gambling with DCA, not trading. END NOTES: