As of December 31,

2025

2024

Fair value of investment in marketable securities at the beginning of year

$

13,737

$

20,171

Transfer to non-marketable security

-

(1,500

)

Unrealized holding gain (loss)

8,953

(5,018

)

Exchange rate effect

(11

)

84

Fair value of investment in marketable securities at the end of year

$

22,679

$

13,737