Sort a list of coins by what a round trip costs and one of them lands at the top. It is tempting to read that position as a verdict. It is a measurement of one thing: how much the venue takes when you get in and out. The coin’s prospects are not in the column.

What low cost tells you

A low round-trip cost usually reflects heavy trading and a deep market. Coins that many people trade in size are cheap to trade for the same reason busy roads have more lanes. That is a fact about the market in the coin. It tells you that if you trade it, less of the move goes to cost.

What it does not tell you

It does not tell you the coin will move. The largest and cheapest coins are often the ones with the smallest daily ranges. A trade needs a move to pay for itself, and a coin that costs little and travels little can be a worse proposition than one that costs more and travels a lot. Cost as a share of the move sets the two against each other.

It does not tell you direction. Cost is the same whether the coin rises or falls. A cheap coin to trade can fall all month.

It does not tell you about anything outside the trade: who holds the supply, what the token does, or whether the market in it will still be deep next week.

The mistake in the other direction

The opposite error is to ignore cost because it is not the whole picture. A high cost is a real handicap. It raises the hurdle on every trade in that coin and it is paid whether the idea works or not. An expensive coin needs a larger move, and a trader who wants it should know how much larger.

How to use a ranking

A cost ranking works as a filter applied after an idea exists. You have a reason to look at a coin. The ranking tells you what that idea has to overcome. If two coins express the same view and one costs noticeably less, that is useful. If the idea exists only because the coin ranked well, the ranking has been asked a question it cannot answer.

It also works as a warning. A coin near the bottom of the ranking is one where short-term trading is hard for anyone, however good the read. Knowing that before placing the order is the purpose of the list.

Where the ranking is

The NoVo Crypto Market Map ranks what a round trip costs on each coin, from Robinhood’s own disclosed markup. It is a readout of a published figure, sorted. It makes no judgment about any coin and it is no suggestion to trade one. Read the round trip before you buy a coin shows the check in practice, and why a small coin costs more to trade explains the spread between top and bottom.