Tether (USDT Optimism) → Simon's Cat (CAT)

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 USDT Optimism → CAT 1 USDT Optimism = 438,399.82 CAT 1 CAT = 0.00000228102 USDT Optimism

Rate as of Sep 30, 2026 14:05

Orders from: 100.67 USDT Optimism ≈ $100.63
Payout network: Simon's Cat
24 hours: +0.35%

You send

USDT Optimism

You get 876,799,649.28

CAT

Create the order

Rate: 1 USDT Optimism = 438,399.82 CAT
From: 100.67 USDT Optimism
Up to: 10,000,000 USDT Optimism

Preliminary figure: the final amount is locked in the order.

Right now 1 USDT Optimism gets you 438,399.82 CAT; the other way round, 1 CAT is 0.00000228102 USDT Optimism. Over 24 hours USDT Optimism/CAT came in at plus 0.35%. Over the week, plus 2.09%.

The weekly range ran from 413,843.62 to 478,620.4 CAT, a spread of 15.65%. One order takes from 100.67 to 10,000,000 USDT Optimism. In dollars that is roughly $100.63.

Market capitalisation puts Tether at No. 3 ($183.81 B) and Simon's Cat at No. 972 ($16.98 M). Over 90 days the daily moves of USDT and CAT correlate at -0.01 (they travel apart).

Rate and amounts for USDT Optimism → CAT

Send USDT Optimism — receive CATNeed CAT — send this much USDT Optimism

USDT Optimism	CAT
200	87,679,964.93
1,000	438,399,824.64
2,000	876,799,649.28
10,000	4,383,998,246.38
20,000	8,767,996,492.77
100,000	43,839,982,463.83

CAT	USDT Optimism
50,000,000	114.0511
200,000,000	456.2046
500,000,000	1,140.51
2,000,000,000	4,562.05
5,000,000,000	11,405.11
20,000,000,000	45,620.46

How the USDT Optimism → CAT exchange runs

Work out the amount in the calculator — orders start at 100.67 USDT Optimism.
Give a CAT address on Simon's Cat and a contact for the order.
Send USDT Optimism on Optimism, exactly the amount the order shows.
Nothing else is needed from you: as soon as the network confirms the transfer, the robot sends Simon's Cat to your address. The order page shows the status.

Swap USDT Optimism for CAT

Check this before sending USDT Optimism

The address network is Simon's Cat. Sending through another network almost always means losing the transfer.
The transfer must not be smaller than 100.67 USDT Optimism.
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 USDT Optimism to CAT rate has moved

WeekMonthQuarterYear

high 478,620.4 CATlow 413,843.62 CAT

Sep 23, 2026 14:06Sep 30, 2026 14:06

high 563,343.83 CATlow 394,791.31 CAT

Aug 30, 2026 05:00Sep 29, 2026 05:00

high 792,297.6 CATlow 394,791.31 CAT

Jul 1, 2026 05:00Sep 29, 2026 05:00

high 792,297.6 CATlow 113,996.68 CAT

Oct 1, 2025 05:00Sep 29, 2026 05:00

24 hours: +0.35%
Week: +2.09%
Weekly high: 478,620.4 CAT
Weekly low: 413,843.62 CAT
Spread: 15.65%

Market data from CoinGecko as of Sep 30, 2026 13:57. The exchange rate is worked out separately and differs from the market one. How these numbers are counted

The USDT Optimism/CAT spread by period

Period	High	Low	Middle	Period result
24 hours	453,539.48	435,871.59	445,795.65	+0.35%
Week	478,620.4	413,843.62	441,054.37	+2.09%
Month	563,343.83	394,791.31	483,260.88	−12.71%
Quarter	792,297.6	394,791.31	612,344.28	−43.07%

Figures are in CAT per unit of the currency you send, taken from market data.

Daily USDT Optimism → CAT rate

Day	Close	Against the day before
Sep 29, 2026	451,042.33 CAT	+8.24%
Sep 28, 2026	416,701.56 CAT	−0.89%
Sep 27, 2026	420,440.53 CAT	−4.34%
Sep 26, 2026	439,516.83 CAT	+0.65%
Sep 25, 2026	436,686.65 CAT	−7.84%
Sep 24, 2026	473,858.98 CAT	+10.77%
Sep 23, 2026	427,793.82 CAT	−4.45%

Market data: USDT and CAT

Tether USDT

Price: $0.999644
24 hours: −0.01%
Week: −0.01%
Market cap: $183.81 B
24-hour turnover: $55.48 B
Rank by cap: #3
In circulation: 183.87 B USDT
All-time high: $1.32

Simon's Cat CAT

Price: $0.00000226
24 hours: −0.36%
Week: −2.33%
Market cap: $16.98 M
24-hour turnover: $790.43 K
Rank by cap: #972
In circulation: 7.5 T CAT
All-time high: $0.00006811

Source: CoinGecko, Sep 30, 2026 13:57.

Tether and Simon's Cat: how they differ

	Tether (USDT)	Simon's Cat (CAT)
Ticker	USDT	CAT
Type	token	—
Network	Optimism	—
Fees are paid in	ETH	—
Launched	2014	—
Built by	Tether Limited	—
Supply cap	no cap	—
In circulation	183.87 B USDT	7.5 T CAT
Market cap	$183.81 B	$16.98 M
Rank by cap	#3	#972

Daily moves of USDT and CAT over the quarter link at -0.01 (they travel apart).

Why people take the USDT Optimism → CAT route

Entering CAT from dollarsUSDT goes into Simon's Cat in one step, with no coin in between: over the last month CAT posted +14.52%.
Different basketsDaily moves of USDT and CAT over 90 days link at -0.01 (they travel apart) — the weaker the link, the less a portfolio rests on one coin.
It works both waysThe CAT → USDT Optimism direction is open as well — going back into USDT takes the same route and the same automation.

Common questions: USDT Optimism → CAT

What rate does USDT Optimism to CAT run at?

As of Sep 30, 2026 14:05 it is 1 USDT Optimism = 438,399.82 CAT. The figure updates on its own, and the calculator always shows the current one. On the market that is around $0.990784.

What amounts does USDT Optimism → CAT accept?

From 100.67 to 10,000,000 USDT Optimism per order. The floor is roughly $100.63.

Why can I not swap less than 100.67 USDT Optimism?

The network fee and the handling do not depend on the amount. On a transfer below 100.67 USDT Optimism 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 USDT Optimism, and the blockchain takes that one.

How long does swapping USDT Optimism for CAT take?

The clock starts with confirmations: as soon as Optimism 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 CAT arrive in?

Simon's Cat arrives in its own Simon's Cat network — a plain CAT 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 USDT Optimism to CAT rate do over the month?

Over the month, minus 12.71%: a low of 394,791.31, a high of 563,343.83, an average of 483,260.88 CAT per 1 USDT Optimism.

Can I swap back, CAT for USDT Optimism?

Yes, the reverse is open too: 1 CAT = 0.00000228098 USDT Optimism. The link to switch sits under the calculator.

Tether (USDT Optimism) → Simon's Cat (CAT)

Rate and amounts for USDT Optimism → CAT

How the USDT Optimism → CAT exchange runs

Check this before sending USDT Optimism

How the USDT Optimism to CAT rate has moved

The USDT Optimism/CAT spread by period

Daily USDT Optimism → CAT rate

Market data: USDT and CAT

Tether and Simon's Cat: how they differ

Why people take the USDT Optimism → CAT route

Common questions: USDT Optimism → CAT

Related reading

Other directions

The other way round

Send USDT Optimism, receive something else

Receive CAT, send something else