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7 |, C4 X. C, {! J; P3 A- E$ A+ L% @3 n- r0 r) J: F
穩定幣有很多種類，比較常見的有：法幣穩定幣(Fiat-backed Stablecoin)、數字資產抵押穩定幣(Crypto-backed Stablecoin)、 商品穩定幣(Commodity Stablecoin) 和演算法穩定幣(Algorithmic Stablecoin)。! o% I( ~: Q( k2 e. K
# @5 {5 l* u% |3 |+ j6 D; w
以法幣作擔保的穩定幣 (Fiat-backed Stablecoin) 這是最常見，也最受歡迎的一種穩定幣類型，與法定貨幣1:1錨定。
$ n; o# L, F, r% j! z# `( `2 V代表1個穩定幣等於1個法幣（例如1美元 = 1 USDT），每個穩定幣背後，都有真實的法幣作為擔保儲備金被存放在銀行裡。可以說投資人手上有多少價值的穩定幣，銀行賬戶裡就有多少相應價值的法幣資產作為“儲備金”。
& Y/ z! q$ A/ L比如投資人用 1 法幣購買 1個穩定幣，發行方會將 1 法幣作為儲備金存放在銀行賬戶裡。 + j; v* \" G1 \5 K$ ^% a
而當投資人想將1 法幣兌換回來時，發行方會將1法幣兌換給投資人，然後收回並銷毀這1個穩定幣。 . l* C3 M, N. S# p
這很容易理解，對於新手來說持有穩定幣和現實世界的法幣沒什麼區別，因此穩定幣也經常作為虛擬貨幣世界的敲門轉。
/ R4 p. y& {& u$ y8 j只要發行穩定幣的公司確保1:1錨定法幣，並且有足夠的“儲備金”做擔保，原則上穩定幣的價值都不會發生太大波動。 " ?* [& m B0 |% _1 u- w5 v
比較有代表性的法幣穩定幣有：USDT（Tether/泰達幣）、USDC（USD Coin），這兩種代幣與美元1:1錨定，基本佔據穩定幣70%的市場，但圍繞他們現金儲備不夠的爭議一直存在。最近發展很快的BUSD（Binance USD），同樣是錨定美元的穩定幣，財務以及美元儲備都更透明。
5 N% D2 d8 V* v- p也有其他法幣支持的穩定幣，如：XSGD由新加坡元1:1支持，歐洲 Stasis的 EURS代幣1:1錨定歐元等等。 " i5 |; R7 y) |. N0 f, f# C
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