OpenLedger (OPEN) → Arbitrum (ARB)
The order runs on autopilot: the rate is locked when you create it, and the payout leaves as soon as the network confirms your transfer. No manual approval, no working hours.
Rate and amounts for OPEN → ARB
1 OPEN = 0.63315 ARB
1 ARB = 1.5794 OPEN
Rate as of Sep 30, 2026 19:15
- Orders from
- 776.7747 OPEN ≈ $101.52
- Payout network
- Arbitrum
- 24 hours
- +1.99%
Right now 1 OPEN gets you 0.63315 ARB; the other way round, 1 ARB is 1.5794 OPEN. Over 24 hours OPEN/ARB came in at plus 1.99%. Over the week, plus 5.76%.
The weekly range ran from 0.59352 to 0.65044 ARB, a spread of 9.59%. One order takes from 776.7747 to 76,500,000 OPEN. In dollars that is roughly $101.52.
Market capitalisation puts OpenLedger at No. 740 ($28.16 M) and Arbitrum at No. 66 ($1.41 B). Over 90 days the daily moves of OPEN and ARB correlate at 0.41 (they travel alike).
Rate and amounts for OPEN → ARB
| OPEN | ARB | ≈ USD |
|---|---|---|
| 1,000 | 633.1498 | $130.70 |
| 5,000 | 3,165.75 | $653.48 |
| 10,000 | 6,331.5 | $1,306.95 |
| 50,000 | 31,657.49 | $6,534.75 |
| 100,000 | 63,314.98 | $13,069.50 |
| 500,000 | 316,574.89 | $65,347.50 |
| ARB | OPEN | ≈ USD |
|---|---|---|
| 500 | 789.7026 | $103.21 |
| 2,000 | 3,158.81 | $412.84 |
| 5,000 | 7,897.03 | $1,032.10 |
| 20,000 | 31,588.1 | $4,128.41 |
| 50,000 | 78,970.26 | $10,321.02 |
| 200,000 | 315,881.02 | $41,284.07 |
How the OPEN → ARB exchange runs
- Work out the amount in the calculator — orders start at 776.7747 OPEN.
- Give a ARB address on Arbitrum and a contact for the order.
- Send OPEN on OpenLedger, exactly the amount the order shows.
- Nothing else is needed from you: as soon as the network confirms the transfer, the robot sends Arbitrum to your address. The order page shows the status.
Check this before sending OPEN
- The address network is Arbitrum. Sending through another network almost always means losing the transfer.
- The transfer must not be smaller than 776.7747 OPEN.
- Copy the address in full, then check its first and last characters once it is pasted.
- Send exactly the amount stated in the order: the automation matches your payment against it, and any difference sends the order back for recalculation.
How the OPEN to ARB rate has moved
high 0.65044 ARBlow 0.59352 ARB
Sep 23, 2026 19:16Sep 30, 2026 19:16
high 1.6305 ARBlow 0.612413 ARB
Aug 31, 2026 05:00Sep 30, 2026 05:00
high 2.7037 ARBlow 0.612413 ARB
Jul 2, 2026 05:00Sep 30, 2026 05:00
high 2.9009 ARBlow 0.612413 ARB
Oct 1, 2025 05:00Sep 30, 2026 05:00
- 24 hours
- +1.99%
- Week
- +5.76%
- Weekly high
- 0.65044 ARB
- Weekly low
- 0.59352 ARB
- Spread
- 9.59%
Market data from CoinGecko as of Sep 30, 2026 18:57. The exchange rate is worked out separately and differs from the market one. How these numbers are counted
The OPEN/ARB spread by period
| Period | High | Low | Middle | Period result |
|---|---|---|---|---|
| 24 hours | 0.642279 | 0.614871 | 0.631839 | +1.99% |
| Week | 0.65044 | 0.59352 | 0.623658 | +5.76% |
| Month | 1.6305 | 0.612413 | 0.818644 | −60.8% |
| Quarter | 2.7037 | 0.612413 | 1.6129 | −69.51% |
Figures are in ARB per unit of the currency you send, taken from market data.
Daily OPEN → ARB rate
| Day | Close | Against the day before |
|---|---|---|
| Sep 30, 2026 | 0.639187 ARB | −0.32% |
| Sep 29, 2026 | 0.641217 ARB | +4.7% |
| Sep 28, 2026 | 0.612413 ARB | −3.22% |
| Sep 27, 2026 | 0.632774 ARB | +3.26% |
| Sep 26, 2026 | 0.612778 ARB | −3.56% |
| Sep 25, 2026 | 0.635379 ARB | +3.36% |
| Sep 24, 2026 | 0.614701 ARB | −0.27% |
Market data: OPEN and ARB
OpenLedger OPEN- Price
- $0.130695
- 24 hours
- −0.24%
- Week
- −7.26%
- Market cap
- $28.16 M
- 24-hour turnover
- $5.62 M
- Rank by cap
- #740
- In circulation
- 215.5 M OPEN
- All-time high
- $1.82
Arbitrum ARB- Price
- $0.20766
- 24 hours
- −2.19%
- Week
- −11.25%
- Market cap
- $1.41 B
- 24-hour turnover
- $254.25 M
- Rank by cap
- #66
- In circulation
- 6.79 B ARB
- All-time high
- $2.39
Source: CoinGecko, Sep 30, 2026 18:57.
OpenLedger and Arbitrum: how they differ
| OpenLedger (OPEN) | Arbitrum (ARB) | |
|---|---|---|
| Ticker | OPEN | ARB |
| In circulation | 215.5 M OPEN | 6.79 B ARB |
| Market cap | $28.16 M | $1.41 B |
| Rank by cap | #740 | #66 |
| Type | — | token |
| Launched | — | 2023 |
| Built by | — | Offchain Labs |
| Supply cap | — | 10 B ARB |
Daily moves of OPEN and ARB over the quarter link at 0.41 (they travel alike).
Why people take the OPEN → ARB route
- A DeFi protocol tokenArbitrum belongs to decentralised finance: holders govern the protocol with it and pay for operations inside it.
- Different basketsDaily moves of OPEN and ARB over 90 days link at 0.41 (they travel alike) — the weaker the link, the less a portfolio rests on one coin.
- It works both waysThe ARB → OPEN direction is open as well — going back into OPEN takes the same route and the same automation.
Common questions: OPEN → ARB
What rate does OPEN to ARB run at?
As of Sep 30, 2026 19:15 it is 1 OPEN = 0.63315 ARB. The figure updates on its own, and the calculator always shows the current one. On the market that is around $0.13148.
What amounts does OPEN → ARB accept?
From 776.7747 to 76,500,000 OPEN per order. The floor is roughly $101.52.
Why can I not swap less than 776.7747 OPEN?
The network fee and the handling do not depend on the amount. On a transfer below 776.7747 OPEN they eat a noticeable share of it, and the swap stops making sense for either side.
Is anything charged on top of the rate?
No. The payout is already worked out at the rate in the calculator. Separately you pay only the network fee for sending OPEN, and the blockchain takes that one.
How long does swapping OPEN for ARB take?
The clock starts with confirmations: as soon as OpenLedger confirms your transfer, the order goes out for payout with no operator involved. After that the timing is set by how busy the network is — which is the difference between quick and instant.
Which network will ARB arrive in?
Arbitrum arrives in its own Arbitrum network — a plain ARB address is all you need.
What happens if the rate moves while I am paying?
Nothing: the rate is locked in the order and holds for as long as the order is alive. It is recalculated only if the payment arrives late or for a different amount — so send the exact sum, and send it promptly.
What did the OPEN to ARB rate do over the month?
Over the month, minus 60.8%: a low of 0.612413, a high of 1.6305, an average of 0.818644 ARB per 1 OPEN.
Can I swap back, ARB for OPEN?
Yes, the reverse is open too: 1 ARB = 1.5794 OPEN. The link to switch sits under the calculator.
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