Mostly, they don't. Over the first full day our price archive holds — 86 scans, one every fifteen minutes — seven of the nineteen platforms on the board showed exactly one price for 65,000 energy for an hour, from the first scan to the last, and precisely one platform repriced continuously.
How much history this is
The archive is still filling.
That line fills itself in from the archive, and it is the caveat on everything below: this article covers one day, and one day is not a pattern, it is the first data point. The 86 scans landed where an unbroken run would have given 91 — five were missed. All of it is plotted on the history page.
Most sellers did not move at all
Seven platforms held a single value for the whole day: Brutus.finance, EnergyFather, FeeSaver, RentTron, Tron Fee, TR Energy and TronZap. Not a small change — no change, across every scan we took.
Three more published nothing in that cell at all, either because they do not sell an hour or because our scraper could not read one. So a typical scan carried numbers from thirteen to sixteen of the nineteen rows. Worth knowing before you read any "market average": it averages whoever answered.
The one that moved every fifteen minutes
JustLend DAO produced 84 readings in the window, 83 of them distinct, and changed between 82 of the 83 consecutive scans. It climbed roughly 38% from its first reading to a peak in the early evening of 5 September, then fell back through the night, finishing about 29% below that peak and a little below where it started.
Why that one and no other is an inference, not a finding, but the shape fits: JustLend DAO is tagged on our compare page as a dApp with staking — an on-chain rental market rather than a published price list. A rate computed on chain can move every block. A rate typed into a web page moves when somebody types a new one.
The one that moved in steps
NETTS took six distinct values, stepping up through the morning and back down later — the profile of a price list edited a few times a day rather than a market. It is the cheapest quote on the board as this page loads, at 1.30 TRX for 65k/1h, and today's cheapest name is NETTS.
CatFee and MeFree each alternated between two or three values from one scan to the next, sometimes reverting within half an hour. From outside we cannot separate a platform genuinely repricing from our reader catching a different tier or a promotional state, so we are not going to call it either.
What looked like movement and wasn't
Here is the part a price board owes its readers. Over that day the visible low and the visible high on the board moved much further than any seller's price did — and most of that movement was ours, not the market's.
One platform's quote stepped up in a single scan because we changed which of its two published prices we read: its bot and API rate, which requires membership, versus the price a plain transfer pays. The note on its board row records exactly that. The day's dearest quote roughly halved in one scan when we corrected for a platform that bundles a fixed extra package of energy into every quote it returns — arithmetic, not a discount, and the correction is written up in our API roundup. Another platform had no quote until mid-afternoon, when we started reading it; adding a seller at the expensive end lifts the average without anyone changing a price. And one of the "two-value" series is a rounding change in the fourth decimal.
The lesson is cheap and useful: when a price board's headline number jumps, the first question is whether the market moved or the board did. Ours logs both.
What held steady
The market median stayed inside a band about 18% wide across the entire day, and spent most of it flicking between a handful of adjacent values — which is what a median does when the platforms around it are stationary and the ranking barely changes.
The spread did not narrow. The gap between the cheapest and the dearest quote stayed several-fold from the first scan to the last: right now it runs from 1.30 TRX to 5.30 TRX for the same 65,000 energy for the same hour, against a market average of 2.86 TRX. Nineteen sellers of an identical commodity have still not converged.
So should you wait for a better price?
On one day of evidence, no. Everything the clock offered across that day was smaller than what you save by picking the right platform in the first place. Rent when you need to send.
Two things still repay a look at the board first. The cheapest name changed hands during the day, so last week's bookmark may not be today's answer. And a row showing no price is not a cheap platform, it is one we could not read on that pass.
What we cannot tell you yet is whether any of this repeats — whether energy is dearer in Asian hours, whether weekends differ, whether the continuous mover always leads. Those are questions for an archive weeks deep. Ask again later; the charts fill in every fifteen minutes.