Team Rocket's Proton
TCGPlayer · US market · HolofoilUS$2.30USD market referenceUpdated 22 Oct 2026
▼87.90%historical change
Ungraded card references. Condition and selling costs affect what you receive; graded slab values are not covered.
Team Rocket's Proton #227/182 from SV10: Destined Rivals (Holofoil): TCGPlayer US-market reference US$2.30, updated 22 Oct 2026. Source currency: USD.
What does this price mean?
TCGPlayer is a US-market reference in USD. Cardmarket uses a Broad foil guide · EUR source, converted from EUR to USD; it is not UK-only pricing. Prices refer to the displayed printing. Your card's condition, language, grading and selling costs can affect what you receive.
US market price history · 21 May 2025 – 23 Oct 2026
496 recorded price points. Change compares the first and last points shown.
View recorded prices as a table
| Date | Market price |
|---|---|
| 21 May 2025 | $20.00 |
| 22 May 2025 | $20.00 |
| 23 May 2025 | $19.99 |
| 24 May 2025 | $19.99 |
| 25 May 2025 | $19.96 |
| 26 May 2025 | $19.95 |
| 27 May 2025 | $14.99 |
| 28 May 2025 | $14.98 |
| 29 May 2025 | $14.92 |
| 30 May 2025 | $9.02 |
| 31 May 2025 | $7.20 |
| 1 Jun 2025 | $7.95 |
| 2 Jun 2025 | $8.06 |
| 3 Jun 2025 | $8.34 |
| 4 Jun 2025 | $7.91 |
| 5 Jun 2025 | $7.46 |
| 6 Jun 2025 | $7.50 |
| 7 Jun 2025 | $6.43 |
| 8 Jun 2025 | $7.10 |
| 9 Jun 2025 | $7.53 |
| 10 Jun 2025 | $7.72 |
| 11 Jun 2025 | $7.76 |
| 12 Jun 2025 | $8.44 |
| 13 Jun 2025 | $8.19 |
| 14 Jun 2025 | $7.95 |
| 15 Jun 2025 | $8.18 |
| 16 Jun 2025 | $7.36 |
| 17 Jun 2025 | $7.26 |
| 18 Jun 2025 | $6.75 |
| 19 Jun 2025 | $6.77 |
| 20 Jun 2025 | $7.00 |
| 21 Jun 2025 | $7.39 |
| 22 Jun 2025 | $7.49 |
| 23 Jun 2025 | $7.50 |
| 24 Jun 2025 | $7.45 |
| 25 Jun 2025 | $7.03 |
| 26 Jun 2025 | $6.57 |
| 27 Jun 2025 | $5.83 |
| 28 Jun 2025 | $5.76 |
| 29 Jun 2025 | $5.89 |
| 30 Jun 2025 | $5.85 |
| 1 Jul 2025 | $5.89 |
| 2 Jul 2025 | $6.20 |
| 3 Jul 2025 | $5.95 |
| 4 Jul 2025 | $5.91 |
| 5 Jul 2025 | $5.89 |
| 6 Jul 2025 | $5.85 |
| 7 Jul 2025 | $6.06 |
| 8 Jul 2025 | $6.10 |
| 9 Jul 2025 | $6.21 |
| 10 Jul 2025 | $6.17 |
| 11 Jul 2025 | $6.20 |
| 12 Jul 2025 | $6.18 |
| 13 Jul 2025 | $6.16 |
| 14 Jul 2025 | $6.33 |
| 15 Jul 2025 | $6.58 |
| 16 Jul 2025 | $6.83 |
| 17 Jul 2025 | $6.67 |
| 18 Jul 2025 | $7.75 |
| 19 Jul 2025 | $7.58 |
| 20 Jul 2025 | $6.88 |
| 21 Jul 2025 | $6.81 |
| 22 Jul 2025 | $7.12 |
| 23 Jul 2025 | $7.18 |
| 24 Jul 2025 | $7.30 |
| 25 Jul 2025 | $7.12 |
| 26 Jul 2025 | $6.69 |
| 27 Jul 2025 | $6.79 |
| 28 Jul 2025 | $6.82 |
| 29 Jul 2025 | $6.70 |
| 30 Jul 2025 | $6.66 |
| 31 Jul 2025 | $6.54 |
| 1 Aug 2025 | $6.25 |
| 2 Aug 2025 | $6.15 |
| 3 Aug 2025 | $6.21 |
| 4 Aug 2025 | $6.25 |
| 5 Aug 2025 | $6.08 |
| 6 Aug 2025 | $5.89 |
| 7 Aug 2025 | $5.89 |
| 8 Aug 2025 | $5.71 |
| 9 Aug 2025 | $5.64 |
| 10 Aug 2025 | $5.76 |
| 11 Aug 2025 | $5.82 |
| 12 Aug 2025 | $5.94 |
| 13 Aug 2025 | $5.86 |
| 14 Aug 2025 | $5.96 |
| 15 Aug 2025 | $6.10 |
| 16 Aug 2025 | $6.02 |
| 17 Aug 2025 | $6.06 |
| 18 Aug 2025 | $5.98 |
| 19 Aug 2025 | $5.84 |
| 20 Aug 2025 | $5.95 |
| 21 Aug 2025 | $5.92 |
| 22 Aug 2025 | $6.09 |
| 23 Aug 2025 | $6.06 |
| 24 Aug 2025 | $6.00 |
| 25 Aug 2025 | $5.84 |
| 26 Aug 2025 | $5.78 |
| 27 Aug 2025 | $5.83 |
| 28 Aug 2025 | $5.61 |
| 29 Aug 2025 | $5.74 |
| 30 Aug 2025 | $5.97 |
| 31 Aug 2025 | $6.15 |
| 1 Sept 2025 | $5.79 |
| 2 Sept 2025 | $5.63 |
| 3 Sept 2025 | $5.63 |
| 4 Sept 2025 | $5.61 |
| 5 Sept 2025 | $5.65 |
| 6 Sept 2025 | $5.63 |
| 7 Sept 2025 | $5.67 |
| 8 Sept 2025 | $5.87 |
| 9 Sept 2025 | $5.39 |
| 10 Sept 2025 | $4.86 |
| 11 Sept 2025 | $4.99 |
| 12 Sept 2025 | $5.09 |
| 13 Sept 2025 | $5.04 |
| 14 Sept 2025 | $4.94 |
| 15 Sept 2025 | $4.84 |
| 16 Sept 2025 | $4.95 |
| 17 Sept 2025 | $4.86 |
| 18 Sept 2025 | $5.03 |
| 19 Sept 2025 | $5.27 |
| 20 Sept 2025 | $5.63 |
| 21 Sept 2025 | $5.66 |
| 22 Sept 2025 | $5.57 |
| 23 Sept 2025 | $5.41 |
| 24 Sept 2025 | $5.60 |
| 25 Sept 2025 | $5.63 |
| 26 Sept 2025 | $5.71 |
| 27 Sept 2025 | $5.83 |
| 28 Sept 2025 | $5.53 |
| 29 Sept 2025 | $5.40 |
| 30 Sept 2025 | $5.04 |
| 1 Oct 2025 | $4.93 |
| 2 Oct 2025 | $5.13 |
| 3 Oct 2025 | $5.06 |
| 4 Oct 2025 | $5.14 |
| 5 Oct 2025 | $5.32 |
| 6 Oct 2025 | $5.28 |
| 7 Oct 2025 | $5.21 |
| 8 Oct 2025 | $5.21 |
| 9 Oct 2025 | $5.31 |
| 10 Oct 2025 | $5.23 |
| 11 Oct 2025 | $5.11 |
| 12 Oct 2025 | $5.07 |
| 13 Oct 2025 | $5.10 |
| 14 Oct 2025 | $5.07 |
| 15 Oct 2025 | $4.80 |
| 16 Oct 2025 | $4.83 |
| 17 Oct 2025 | $4.79 |
| 18 Oct 2025 | $4.84 |
| 19 Oct 2025 | $4.61 |
| 20 Oct 2025 | $4.36 |
| 21 Oct 2025 | $4.22 |
| 22 Oct 2025 | $4.22 |
| 23 Oct 2025 | $4.16 |
| 24 Oct 2025 | $4.18 |
| 25 Oct 2025 | $4.27 |
| 26 Oct 2025 | $4.14 |
| 27 Oct 2025 | $3.89 |
| 28 Oct 2025 | $3.73 |
| 29 Oct 2025 | $3.83 |
| 30 Oct 2025 | $3.86 |
| 31 Oct 2025 | $3.86 |
| 1 Nov 2025 | $3.93 |
| 2 Nov 2025 | $3.86 |
| 3 Nov 2025 | $3.64 |
| 4 Nov 2025 | $3.52 |
| 5 Nov 2025 | $3.34 |
| 6 Nov 2025 | $3.27 |
| 7 Nov 2025 | $3.31 |
| 8 Nov 2025 | $3.34 |
| 9 Nov 2025 | $3.40 |
| 10 Nov 2025 | $3.30 |
| 11 Nov 2025 | $3.31 |
| 12 Nov 2025 | $3.38 |
| 13 Nov 2025 | $3.31 |
| 14 Nov 2025 | $3.21 |
| 15 Nov 2025 | $2.97 |
| 16 Nov 2025 | $2.96 |
| 17 Nov 2025 | $3.18 |
| 18 Nov 2025 | $2.84 |
| 19 Nov 2025 | $2.86 |
| 20 Nov 2025 | $2.72 |
| 21 Nov 2025 | $2.60 |
| 22 Nov 2025 | $2.49 |
| 23 Nov 2025 | $2.44 |
| 24 Nov 2025 | $2.23 |
| 25 Nov 2025 | $2.17 |
| 26 Nov 2025 | $2.05 |
| 27 Nov 2025 | $2.15 |
| 28 Nov 2025 | $2.21 |
| 29 Nov 2025 | $2.41 |
| 30 Nov 2025 | $2.49 |
| 1 Dec 2025 | $2.23 |
| 2 Dec 2025 | $2.30 |
| 3 Dec 2025 | $2.42 |
| 4 Dec 2025 | $2.46 |
| 5 Dec 2025 | $2.54 |
| 6 Dec 2025 | $2.39 |
| 7 Dec 2025 | $2.51 |
| 8 Dec 2025 | $2.55 |
| 9 Dec 2025 | $2.64 |
| 10 Dec 2025 | $2.64 |
| 11 Dec 2025 | $2.33 |
| 12 Dec 2025 | $2.41 |
| 13 Dec 2025 | $2.38 |
| 14 Dec 2025 | $2.35 |
| 15 Dec 2025 | $2.43 |
| 16 Dec 2025 | $2.44 |
| 17 Dec 2025 | $2.41 |
| 18 Dec 2025 | $2.53 |
| 19 Dec 2025 | $2.13 |
| 20 Dec 2025 | $1.93 |
| 21 Dec 2025 | $1.93 |
| 22 Dec 2025 | $2.04 |
| 23 Dec 2025 | $2.09 |
| 24 Dec 2025 | $2.21 |
| 25 Dec 2025 | $2.29 |
| 26 Dec 2025 | $2.30 |
| 27 Dec 2025 | $2.47 |
| 28 Dec 2025 | $2.36 |
| 29 Dec 2025 | $2.44 |
| 30 Dec 2025 | $2.54 |
| 31 Dec 2025 | $2.51 |
| 1 Jan 2026 | $2.48 |
| 2 Jan 2026 | $2.58 |
| 3 Jan 2026 | $2.46 |
| 4 Jan 2026 | $2.57 |
| 5 Jan 2026 | $2.60 |
| 6 Jan 2026 | $2.63 |
| 7 Jan 2026 | $2.45 |
| 8 Jan 2026 | $2.50 |
| 9 Jan 2026 | $2.82 |
| 10 Jan 2026 | $2.64 |
| 11 Jan 2026 | $2.69 |
| 12 Jan 2026 | $2.76 |
| 13 Jan 2026 | $2.84 |
| 14 Jan 2026 | $2.88 |
| 15 Jan 2026 | $2.95 |
| 16 Jan 2026 | $2.78 |
| 17 Jan 2026 | $2.63 |
| 18 Jan 2026 | $2.81 |
| 19 Jan 2026 | $2.62 |
| 20 Jan 2026 | $2.66 |
| 21 Jan 2026 | $3.04 |
| 22 Jan 2026 | $3.23 |
| 23 Jan 2026 | $2.97 |
| 24 Jan 2026 | $2.88 |
| 25 Jan 2026 | $3.54 |
| 26 Jan 2026 | $3.54 |
| 27 Jan 2026 | $3.94 |
| 28 Jan 2026 | $4.71 |
| 29 Jan 2026 | $5.05 |
| 30 Jan 2026 | $5.58 |
| 31 Jan 2026 | $6.38 |
| 1 Feb 2026 | $6.24 |
| 2 Feb 2026 | $6.02 |
| 3 Feb 2026 | $6.28 |
| 4 Feb 2026 | $6.20 |
| 5 Feb 2026 | $6.17 |
| 6 Feb 2026 | $6.59 |
| 7 Feb 2026 | $6.51 |
| 8 Feb 2026 | $6.35 |
| 9 Feb 2026 | $6.70 |
| 10 Feb 2026 | $6.83 |
| 11 Feb 2026 | $6.96 |
| 12 Feb 2026 | $6.46 |
| 13 Feb 2026 | $6.38 |
| 14 Feb 2026 | $6.23 |
| 15 Feb 2026 | $6.17 |
| 16 Feb 2026 | $5.88 |
| 17 Feb 2026 | $6.46 |
| 18 Feb 2026 | $6.44 |
| 19 Feb 2026 | $6.45 |
| 20 Feb 2026 | $5.69 |
| 21 Feb 2026 | $5.56 |
| 22 Feb 2026 | $5.34 |
| 23 Feb 2026 | $5.77 |
| 24 Feb 2026 | $5.91 |
| 25 Feb 2026 | $5.94 |
| 26 Feb 2026 | $5.98 |
| 27 Feb 2026 | $6.35 |
| 28 Feb 2026 | $6.53 |
| 1 Mar 2026 | $6.18 |
| 2 Mar 2026 | $6.03 |
| 3 Mar 2026 | $6.34 |
| 4 Mar 2026 | $6.50 |
| 5 Mar 2026 | $6.46 |
| 6 Mar 2026 | $6.52 |
| 7 Mar 2026 | $6.26 |
| 8 Mar 2026 | $6.25 |
| 9 Mar 2026 | $6.21 |
| 10 Mar 2026 | $6.53 |
| 11 Mar 2026 | $6.52 |
| 12 Mar 2026 | $6.47 |
| 13 Mar 2026 | $6.84 |
| 14 Mar 2026 | $6.91 |
| 15 Mar 2026 | $6.68 |
| 16 Mar 2026 | $6.62 |
| 17 Mar 2026 | $6.60 |
| 18 Mar 2026 | $6.59 |
| 19 Mar 2026 | $6.75 |
| 20 Mar 2026 | $6.92 |
| 21 Mar 2026 | $7.39 |
| 22 Mar 2026 | $8.59 |
| 23 Mar 2026 | $8.08 |
| 24 Mar 2026 | $6.95 |
| 25 Mar 2026 | $6.78 |
| 26 Mar 2026 | $6.43 |
| 27 Mar 2026 | $6.80 |
| 28 Mar 2026 | $7.13 |
| 29 Mar 2026 | $7.27 |
| 30 Mar 2026 | $7.14 |
| 31 Mar 2026 | $7.05 |
| 1 Apr 2026 | $6.88 |
| 2 Apr 2026 | $6.43 |
| 3 Apr 2026 | $6.53 |
| 4 Apr 2026 | $6.54 |
| 5 Apr 2026 | $6.20 |
| 6 Apr 2026 | $6.60 |
| 8 Apr 2026 | $6.41 |
| 9 Apr 2026 | $6.17 |
| 10 Apr 2026 | $6.24 |
| 11 Apr 2026 | $5.96 |
| 12 Apr 2026 | $5.71 |
| 13 Apr 2026 | $5.84 |
| 14 Apr 2026 | $5.89 |
| 15 Apr 2026 | $5.50 |
| 16 Apr 2026 | $5.46 |
| 17 Apr 2026 | $5.65 |
| 18 Apr 2026 | $5.67 |
| 19 Apr 2026 | $5.77 |
| 20 Apr 2026 | $5.99 |
| 21 Apr 2026 | $5.91 |
| 22 Apr 2026 | $5.85 |
| 23 Apr 2026 | $5.83 |
| 24 Apr 2026 | $5.93 |
| 25 Apr 2026 | $5.92 |
| 26 Apr 2026 | $5.77 |
| 27 Apr 2026 | $5.69 |
| 28 Apr 2026 | $5.96 |
| 29 Apr 2026 | $6.22 |
| 30 Apr 2026 | $6.42 |
| 1 May 2026 | $6.57 |
| 2 May 2026 | $6.41 |
| 3 May 2026 | $6.35 |
| 4 May 2026 | $6.75 |
| 5 May 2026 | $6.46 |
| 6 May 2026 | $6.14 |
| 7 May 2026 | $5.76 |
| 8 May 2026 | $5.14 |
| 9 May 2026 | $5.58 |
| 10 May 2026 | $5.92 |
| 11 May 2026 | $5.70 |
| 12 May 2026 | $5.65 |
| 13 May 2026 | $5.68 |
| 14 May 2026 | $5.65 |
| 15 May 2026 | $5.97 |
| 16 May 2026 | $6.07 |
| 17 May 2026 | $6.05 |
| 18 May 2026 | $5.44 |
| 19 May 2026 | $5.71 |
| 20 May 2026 | $5.87 |
| 21 May 2026 | $5.88 |
| 22 May 2026 | $5.76 |
| 23 May 2026 | $5.91 |
| 24 May 2026 | $5.78 |
| 25 May 2026 | $5.87 |
| 26 May 2026 | $6.17 |
| 27 May 2026 | $6.19 |
| 28 May 2026 | $5.85 |
| 29 May 2026 | $6.19 |
| 30 May 2026 | $6.69 |
| 31 May 2026 | $6.40 |
| 1 Jun 2026 | $6.07 |
| 2 Jun 2026 | $6.23 |
| 3 Jun 2026 | $6.12 |
| 4 Jun 2026 | $6.15 |
| 5 Jun 2026 | $5.96 |
| 6 Jun 2026 | $5.68 |
| 7 Jun 2026 | $5.58 |
| 8 Jun 2026 | $5.26 |
| 9 Jun 2026 | $5.12 |
| 10 Jun 2026 | $5.10 |
| 11 Jun 2026 | $5.05 |
| 12 Jun 2026 | $4.98 |
| 13 Jun 2026 | $5.05 |
| 14 Jun 2026 | $5.25 |
| 15 Jun 2026 | $5.32 |
| 16 Jun 2026 | $5.27 |
| 17 Jun 2026 | $4.99 |
| 18 Jun 2026 | $4.87 |
| 19 Jun 2026 | $4.99 |
| 20 Jun 2026 | $4.88 |
| 21 Jun 2026 | $4.72 |
| 22 Jun 2026 | $4.61 |
| 23 Jun 2026 | $4.76 |
| 24 Jun 2026 | $5.14 |
| 25 Jun 2026 | $5.19 |
| 26 Jun 2026 | $5.07 |
| 27 Jun 2026 | $4.63 |
| 28 Jun 2026 | $4.48 |
| 29 Jun 2026 | $4.42 |
| 30 Jun 2026 | $4.18 |
| 1 Jul 2026 | $4.09 |
| 2 Jul 2026 | $4.30 |
| 3 Jul 2026 | $4.52 |
| 4 Jul 2026 | $4.60 |
| 5 Jul 2026 | $4.50 |
| 6 Jul 2026 | $4.58 |
| 7 Jul 2026 | $4.31 |
| 8 Jul 2026 | $4.31 |
| 9 Jul 2026 | $4.18 |
| 10 Jul 2026 | $3.97 |
| 11 Jul 2026 | $4.07 |
| 12 Jul 2026 | $4.24 |
| 13 Jul 2026 | $4.16 |
| 14 Jul 2026 | $4.15 |
| 15 Jul 2026 | $4.23 |
| 16 Jul 2026 | $4.20 |
| 17 Jul 2026 | $4.23 |
| 18 Jul 2026 | $4.22 |
| 19 Jul 2026 | $4.02 |
| 20 Jul 2026 | $4.03 |
| 21 Jul 2026 | $4.09 |
| 22 Jul 2026 | $3.76 |
| 23 Jul 2026 | $3.71 |
| 24 Jul 2026 | $3.65 |
| 25 Jul 2026 | $3.81 |
| 26 Jul 2026 | $3.89 |
| 27 Jul 2026 | $3.81 |
| 28 Jul 2026 | $3.91 |
| 29 Jul 2026 | $3.86 |
| 30 Jul 2026 | $3.95 |
| 31 Jul 2026 | $3.73 |
| 1 Aug 2026 | $3.93 |
| 2 Aug 2026 | $4.08 |
| 3 Aug 2026 | $4.07 |
| 4 Aug 2026 | $4.00 |
| 5 Aug 2026 | $3.82 |
| 6 Aug 2026 | $3.60 |
| 7 Aug 2026 | $3.19 |
| 8 Aug 2026 | $3.19 |
| 9 Aug 2026 | $3.14 |
| 10 Aug 2026 | $2.81 |
| 11 Aug 2026 | $2.83 |
| 12 Aug 2026 | $2.85 |
| 13 Aug 2026 | $2.85 |
| 14 Aug 2026 | $2.68 |
| 15 Aug 2026 | $2.62 |
| 16 Aug 2026 | $2.67 |
| 17 Aug 2026 | $2.89 |
| 18 Aug 2026 | $3.16 |
| 19 Aug 2026 | $3.02 |
| 20 Aug 2026 | $2.73 |
| 21 Aug 2026 | $2.59 |
| 22 Aug 2026 | $2.73 |
| 23 Aug 2026 | $2.83 |
| 24 Aug 2026 | $2.90 |
| 25 Aug 2026 | $2.81 |
| 26 Aug 2026 | $2.41 |
| 27 Aug 2026 | $2.31 |
| 28 Aug 2026 | $2.51 |
| 29 Aug 2026 | $2.64 |
| 30 Aug 2026 | $2.42 |
| 31 Aug 2026 | $2.34 |
| 1 Sept 2026 | $2.41 |
| 2 Sept 2026 | $2.37 |
| 3 Sept 2026 | $2.64 |
| 4 Sept 2026 | $2.66 |
| 5 Sept 2026 | $2.59 |
| 6 Sept 2026 | $2.61 |
| 7 Sept 2026 | $2.95 |
| 8 Sept 2026 | $2.57 |
| 9 Sept 2026 | $2.49 |
| 10 Sept 2026 | $2.65 |
| 11 Sept 2026 | $2.60 |
| 12 Sept 2026 | $2.66 |
| 13 Sept 2026 | $2.76 |
| 14 Sept 2026 | $2.82 |
| 15 Sept 2026 | $2.64 |
| 17 Sept 2026 | $2.50 |
| 20 Sept 2026 | $2.63 |
| 23 Sept 2026 | $2.26 |
| 26 Sept 2026 | $2.33 |
| 29 Sept 2026 | $2.58 |
| 2 Oct 2026 | $2.57 |
| 5 Oct 2026 | $2.68 |
| 8 Oct 2026 | $2.49 |
| 15 Oct 2026 | $2.34 |
| 16 Oct 2026 | $2.35 |
| 17 Oct 2026 | $2.47 |
| 20 Oct 2026 | $2.34 |
| 21 Oct 2026 | $2.24 |
| 23 Oct 2026 | $2.42 |
Period high$20.00
Period low$1.93
Period average$5.13
Recorded points496
Sales History
395 sold · all variants(30D)Sales recorded · 19 Sept 2026 – 18 Oct 2026. Sales are grouped into reporting periods; the final date is the latest available data.
Showing Holofoil - Near Mint - English
Click a bar to view full breakdown
View recorded sales data
| Date | Units sold | Transactions | Market price | Details |
|---|---|---|---|---|
| 19/09/2026 | 27 | 26 | $2.61 | View sales |
| 22/09/2026 | 42 | 33 | $2.37 | View sales |
| 25/09/2026 | 48 | 36 | $2.31 | View sales |
| 28/09/2026 | 42 | 36 | $2.50 | View sales |
| 01/10/2026 | 26 | 26 | $2.54 | View sales |
| 04/10/2026 | 28 | 21 | $2.71 | View sales |
| 07/10/2026 | 34 | 30 | $2.44 | View sales |
| 10/10/2026 | 40 | 33 | $2.55 | View sales |
| 13/10/2026 | 40 | 33 | $2.27 | View sales |
| 16/10/2026 | 38 | 34 | $2.46 | View sales |
365Units sold · selected condition
308Transactions · selected condition
$2.48Average recorded market price
$0.50Lowest Sale
$6.49Highest Sale
Average recorded market price is the simple mean of reporting periods with a positive market price; it is not weighted by sales volume. A dash means no usable observation is available.