Posco (PKX) Stock: Why It's Up Today

Updated Oct 19, 2026, 4:00 PM ET · closing price

What changed since yesterday

Closed at $57.40, +4.42% vs the prior close of $54.97.
Volume 215.62K shares, 1.0x its 50-day average.
No new SEC filings since the prior session.
No new insider buys or sales reported since the prior session.

PKX jumps 4.4% to $57.40. Closed at $57.40, +4.42% vs the prior close of $54.97. Day range $57.32–$58.77, opened at $58.82.

Last close$57.40+4.42%

Day range57.32–58.77

Open58.82

Volume215.62K

52-week range48.50–92.40

Avg volume (20d)183.03K

PKX daily analysis — what happened

A plain-English, data-only note for every US trading day (today's note updates every 2 hours while the market is open). Newest first; older days stay archived below.

Oct 19, 2026 — PKX jumps 4.4% to $57.40

Closed at $57.40, +4.42% vs the prior close of $54.97. Day range $57.32–$58.77, opened at $58.82.
Volume was 215.62K shares, 1.0x its 50-day average of 207.88K.
Price is -1.9% vs its 50-day average ($58.50) and -6.6% vs its 200-day average ($61.44).
52-week range $48.50–$92.40; today's close sits at 20% of that range, 37.9% below the 52-week high.

Oct 16, 2026 — PKX dips 0.4% to $54.97, a 1-month low

Closed at $54.97, -0.43% vs the prior close of $55.21. Day range $54.71–$56.00, opened at $55.21.
Volume was 96.89K shares, 0.5x its 50-day average of 211.79K — lighter than usual.
Price is -6.0% vs its 50-day average ($58.51) and -10.5% vs its 200-day average ($61.42).
52-week range $48.50–$92.40; today's close sits at 15% of that range, 40.5% below the 52-week high.

Oct 15, 2026 — PKX dips 2.7% to $55.21, a 1-month low

Closed at $55.21, -2.66% vs the prior close of $56.72. Day range $54.04–$55.23, opened at $54.30.
Volume was 171.20K shares, 0.8x its 50-day average of 213.20K.
Price is -5.7% vs its 50-day average ($58.53) and -10.1% vs its 200-day average ($61.41).
52-week range $48.50–$92.40; today's close sits at 15% of that range, 40.2% below the 52-week high.

Oct 14, 2026 — PKX rises 1.3% to $56.72

Closed at $56.72, +1.32% vs the prior close of $55.98. Day range $56.40–$57.69, opened at $57.15.
Volume was 189.90K shares, 0.9x its 50-day average of 215.15K.
Price is -3.1% vs its 50-day average ($58.52) and -7.6% vs its 200-day average ($61.40).
52-week range $47.32–$92.40; today's close sits at 21% of that range, 38.6% below the 52-week high.

Oct 13, 2026 — PKX rises 0.6% to $55.98

Closed at $55.98, +0.61% vs the prior close of $55.64. Day range $55.27–$56.26, opened at $55.44.
Volume was 211.70K shares, 1.0x its 50-day average of 215.27K.
Price is -4.3% vs its 50-day average ($58.48) and -8.8% vs its 200-day average ($61.39).
52-week range $47.32–$92.40; today's close sits at 19% of that range, 39.4% below the 52-week high.

Oct 12, 2026 — PKX slides 3.2% to $55.64, a 1-month low

Closed at $55.64, -3.20% vs the prior close of $57.48. Day range $55.52–$56.17, opened at $56.13.
Volume was 169.10K shares, 0.8x its 50-day average of 220.84K.
Price is -4.8% vs its 50-day average ($58.42) and -9.4% vs its 200-day average ($61.38).
52-week range $44.99–$92.40; today's close sits at 22% of that range, 39.8% below the 52-week high.

Oct 9, 2026 — PKX rises 1.3% to $57.48

Closed at $57.48, +1.29% vs the prior close of $56.75. Day range $56.99–$57.54, opened at $57.35.
Volume was 168.60K shares, 0.7x its 50-day average of 228.66K.
Price is -1.5% vs its 50-day average ($58.37) and -6.3% vs its 200-day average ($61.37).
52-week range $44.99–$92.40; today's close sits at 26% of that range, 37.8% below the 52-week high.

Oct 8, 2026 — PKX rises 0.9% to $56.75

Closed at $56.75, +0.87% vs the prior close of $56.26. Day range $56.50–$57.24, opened at $56.60.
Volume was 229.00K shares, 1.0x its 50-day average of 232.70K.
Price is -2.7% vs its 50-day average ($58.31) and -7.5% vs its 200-day average ($61.34).
52-week range $44.99–$92.40; today's close sits at 25% of that range, 38.6% below the 52-week high.

Oct 7, 2026 — PKX slides 4.2% to $56.26

Closed at $56.26, -4.22% vs the prior close of $58.74. Day range $55.86–$56.84, opened at $56.84.
Volume was 191.70K shares, 0.8x its 50-day average of 233.34K.
Price is -3.3% vs its 50-day average ($58.15) and -8.2% vs its 200-day average ($61.31).
52-week range $44.99–$92.40; today's close sits at 24% of that range, 39.1% below the 52-week high.

Oct 6, 2026 — PKX rises 0.9% to $58.74, 3 up days in a row

Closed at $58.74, +0.88% vs the prior close of $58.23. Day range $58.64–$59.48, opened at $59.08.
Volume was 233.30K shares, 1.0x its 50-day average of 239.26K.
Price is +1.2% vs its 50-day average ($58.05) and -4.2% vs its 200-day average ($61.29).
52-week range $44.99–$92.40; today's close sits at 29% of that range, 36.4% below the 52-week high.
That makes 3 straight gains.

Oct 5, 2026 — PKX rises 1.1% to $58.23

Closed at $58.23, +1.11% vs the prior close of $57.59. Day range $58.02–$58.58, opened at $58.10.
Volume was 146.10K shares, 0.6x its 50-day average of 242.11K.
Price is +0.5% vs its 50-day average ($57.94) and -4.9% vs its 200-day average ($61.26).
52-week range $44.99–$92.40; today's close sits at 28% of that range, 37.0% below the 52-week high.

Oct 2, 2026 — PKX rises 2.6% to $57.59

Closed at $57.59, +2.60% vs the prior close of $56.13. Day range $57.28–$58.11, opened at $57.31.
Volume was 171.10K shares, 0.7x its 50-day average of 247.05K.
Price is -0.4% vs its 50-day average ($57.82) and -5.9% vs its 200-day average ($61.23).
52-week range $44.99–$92.40; today's close sits at 27% of that range, 37.7% below the 52-week high.

PKX bull case vs bear case (from the data)

Bull case

No clear positive signal in the price trend, filings or insider data right now.

Bear case

Price is -1.9% vs its 50-day average — short-term trend is down.
Price is -6.6% vs its 200-day average — below the long-term trend line.

PKX latest news & SEC filings

Every SEC filing by or about PKX in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.

Sep 30, 2026 · Form 6-K — Report from a foreign company (6-K)