Consolidated Balance Sheets $-$ USD $($$$)$ $ in Thousands Dec. $31,2023$ Dec. $31,2022$

Current assets: $$

Cash and cash equivalents $ $98,500$ $ $63,769$

Restricted cash $2,532$

Short$-$term investments $207,434330,553$

Accounts receivable $40,74975,494$

Allowance for doubtful accounts $(364)(699)$

Accounts receivable, net $40,38574,795$

Inventories: $$

Finished goods $26,32928,893$

Raw materials $1,7991,990$

Total inventories $28,12830,883$

Supplies, prepaid items and other: $$

Prepaid insurance $14,84617,429$

Precious metals $12,09413,323$

Supplies $30,48627,501$

Other $2,3378,346$

Total supplies, prepaid items and other $59,76366,599$

Total current assets $436,742566,599$

Property, plant and equipment, net $835,298848,661$

Other assets: $$

Operating lease assets $24,85222,682$

Intangible and other assets, net $1,2921,877$

Total other assets $26,14424,559$

Total assets $1,298,1841,439,819$

Current liabilities: $$

Accounts payable $68,32378,182$

Short$-$term financing $13,39816,134$

Accrued and other liabilities $30,96138,470$

Current portion of long$-$term debt $5,8479,522$

Total current liabilities $118,529142,308$

Long$-$term debt, net $575,874702,733$

Noncurrent operating lease liabilities $16,07414,896$

Other noncurrent accrued and other liabilities $523522$

Deferred income taxes $68,85363,487$

Commitments and contingencies $($Note $7)$

Stockholders' equity: $$

Common stock, $$\mathrm{.}10$ par value; $150$ million shares authorized, $91\mathrm{.}2$ million shares issued $9,1179,117$

Capital in excess of par value $501,026497,179$

Retained earnings $227,015199,092$

Total stockholders' equity $737,158705,388$

Less treasury stock, at cost: $$

Common stock, $18\mathrm{.}1$ million shares $(14\mathrm{.}9$ million shares at December $31,2022)218,827189,515$

Total stockholders' equity $518,331515,873$

Total liabilities and stockholders' equity $ $1,298,184$ $ $1,439,819$

What is $($a$)$ The liquidity ratio, $($b$)$ Profitability ratio