APPN Deep Analytical Report

Appian Corporation | Category: Equity Small Cap | Last Updated: 2026-03-24 | Data Range: 2017-05-01 → 2026-03-01 (107 months)
Quick Overview
Timeframe C-C DoR σ
(Historical)
H-L DoR σ
(Historical)
O-C DoR σ
(Historical)
5Y ATRP
(Avg)
Binomial IV
(Period)
Yahoo IV
(Period)
1σ Lower
(68.27%)
1σ Upper 2σ Lower
(95.45%)
2σ Upper
Daily 4.15% 3.35% 3.68% 5.29% 3.54% 3.55% 24.50 26.29 23.65 27.24
Weekly 9.29% 8.36% 9.14% 12.42% 7.78% 7.81% 23.48 27.43 21.72 29.66
Monthly 19.86% 25.83% 16.11% 24.48% 16.21% 16.27% 21.58 29.84 18.35 35.10
Quarterly 45.57% 50.76% 26.63% 38.27% 28.07% 28.17% 19.17 33.60 14.48 44.49
Annual 56.14% 56.35% 14.48 44.49 8.26 78.00
Option Time Horizon 21.19% 21.27% 20.53 31.37 16.61 38.77
Calculation Notes: Computed at 2026-03-23T16:43 UTC  |  Reference Contract: Call option expiring 2026-05-15 (52 days)  |  Spot Price (S): $25.38  |  Strike (K): $27.50 (first OTM call ≥ spot)  |  Observed Mid-Price: $1.3750 (Bid $1.3000 / Ask $1.4500)  |  Risk-Free Rate (r): 3.73% (1-Month CMT, US Treasury)  |  Dividend Yield (q): 0.00%  |  Binomial IV (Annual): 56.14% (CRR binomial tree, American, n=20 steps)  |  BS IV: 56.15% (European Black-Scholes)  |  Yahoo IV (Annual): 56.35% → period-scaled as σperiod = σannual·√h  |  Price bands: Upper = S·e+σ√h, Lower = S·e−σ√h
Close-to-Close Returns
Gram-Charlier Analysis: Data reveals Right Skewed (Positive Asymmetry) with a Skewness factor of 0.61. Further, an Excess Kurtosis of 8.97 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -12.34%90.41%0.41%
-12.34% to -9.23%241.08%1.49%
-9.23% to -6.11%873.92%5.41%
-6.11% to -3.00%27012.18%17.59%
-3.00% to 0.11%71832.39%49.98%
0.11% to 3.22%74433.56%83.54%
3.22% to 6.33%26111.77%95.31%
6.33% to 9.44%693.11%98.42%
9.44% to 12.56%190.86%99.28%
Greater than 12.56%160.72%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -4.04%4.26% 76.77%68.27%
±2σ -8.19%8.41% 95.49%95.45%
±3σ -12.34%12.56% 98.87%99.73%
High-to-Low Returns
Gram-Charlier Analysis: Data reveals Highly Right Skewed (Extreme Positive Tail Risk) with a Skewness factor of 2.90. Further, an Excess Kurtosis of 15.48 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -4.55%00.00%0.00%
-4.55% to -2.04%00.00%0.00%
-2.04% to 0.48%00.00%0.00%
0.48% to 2.99%39617.85%17.85%
2.99% to 5.51%97543.96%61.81%
5.51% to 8.03%52123.49%85.30%
8.03% to 10.54%1928.66%93.96%
10.54% to 13.06%693.11%97.07%
13.06% to 15.57%271.22%98.29%
Greater than 15.57%381.71%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ 2.15%8.87% 84.67%68.27%
±2σ -1.20%12.22% 96.08%95.45%
±3σ -4.55%15.57% 98.29%99.73%
Open-to-Close Returns
Gram-Charlier Analysis: Data reveals Fairly Symmetrical with a Skewness factor of 0.39. Further, an Excess Kurtosis of 7.66 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -10.95%130.59%0.59%
-10.95% to -8.19%200.90%1.49%
-8.19% to -5.44%673.02%4.51%
-5.44% to -2.68%32514.65%19.16%
-2.68% to 0.08%71232.10%51.26%
0.08% to 2.84%69331.24%82.51%
2.84% to 5.59%25311.41%93.91%
5.59% to 8.35%1004.51%98.42%
8.35% to 11.11%241.08%99.50%
Greater than 11.11%110.50%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -3.60%3.76% 75.20%68.27%
±2σ -7.28%7.43% 95.40%95.45%
±3σ -10.95%11.11% 98.92%99.73%
Close-to-Close Returns
Gram-Charlier Analysis: Data reveals Right Skewed (Positive Asymmetry) with a Skewness factor of 0.71. Further, an Excess Kurtosis of 3.03 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -27.37%00.00%0.00%
-27.37% to -20.40%81.74%1.74%
-20.40% to -13.43%163.48%5.22%
-13.43% to -6.46%6313.70%18.91%
-6.46% to 0.51%15233.04%51.96%
0.51% to 7.47%13328.91%80.87%
7.47% to 14.44%6413.91%94.78%
14.44% to 21.41%102.17%96.96%
21.41% to 28.38%91.96%98.91%
Greater than 28.38%51.09%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -8.79%9.80% 77.61%68.27%
±2σ -18.08%19.09% 94.78%95.45%
±3σ -27.37%28.38% 98.91%99.73%
High-to-Low Returns
Gram-Charlier Analysis: Data reveals Highly Right Skewed (Extreme Positive Tail Risk) with a Skewness factor of 2.23. Further, an Excess Kurtosis of 8.06 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -10.79%00.00%0.00%
-10.79% to -4.52%00.00%0.00%
-4.52% to 1.75%00.00%0.00%
1.75% to 8.02%8819.09%19.09%
8.02% to 14.29%19642.52%61.61%
14.29% to 20.56%10723.21%84.82%
20.56% to 26.83%378.03%92.84%
26.83% to 33.09%153.25%96.10%
33.09% to 39.36%91.95%98.05%
Greater than 39.36%91.95%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ 5.93%22.65% 81.56%68.27%
±2σ -2.43%31.01% 95.01%95.45%
±3σ -10.79%39.36% 98.05%99.73%
Open-to-Close Returns
Gram-Charlier Analysis: Data reveals Right Skewed (Positive Asymmetry) with a Skewness factor of 0.52. Further, an Excess Kurtosis of 2.50 proves the distribution possesses Fat Tails (Higher Outlier Risk).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -26.98%30.65%0.65%
-26.98% to -20.12%61.30%1.95%
-20.12% to -13.27%122.60%4.56%
-13.27% to -6.41%6914.97%19.52%
-6.41% to 0.45%14832.10%51.63%
0.45% to 7.31%14230.80%82.43%
7.31% to 14.17%4710.20%92.62%
14.17% to 21.02%245.21%97.83%
21.02% to 27.88%51.08%98.92%
Greater than 27.88%51.08%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -8.69%9.60% 75.70%68.27%
±2σ -17.84%18.74% 94.36%95.45%
±3σ -26.98%27.88% 98.26%99.73%
Close-to-Close Returns
Gram-Charlier Analysis: Data reveals Highly Right Skewed (Extreme Positive Tail Risk) with a Skewness factor of 2.44. Further, an Excess Kurtosis of 11.65 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -57.65%00.00%0.00%
-57.65% to -42.75%00.00%0.00%
-42.75% to -27.86%00.00%0.00%
-27.86% to -12.96%2018.87%18.87%
-12.96% to 1.93%4138.68%57.55%
1.93% to 16.83%2826.42%83.96%
16.83% to 31.73%109.43%93.40%
31.73% to 46.62%43.77%97.17%
46.62% to 61.52%21.89%99.06%
Greater than 61.52%10.94%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -17.93%21.80% 80.19%68.27%
±2σ -37.79%41.66% 96.23%95.45%
±3σ -57.65%61.52% 99.06%99.73%
High-to-Low Returns
Gram-Charlier Analysis: Data reveals Highly Right Skewed (Extreme Positive Tail Risk) with a Skewness factor of 5.47. Further, an Excess Kurtosis of 41.53 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -44.37%00.00%0.00%
-44.37% to -25.00%00.00%0.00%
-25.00% to -5.63%00.00%0.00%
-5.63% to 13.74%43.74%3.74%
13.74% to 33.12%7267.29%71.03%
33.12% to 52.49%1917.76%88.79%
52.49% to 71.86%76.54%95.33%
71.86% to 91.23%32.80%98.13%
91.23% to 110.60%10.93%99.07%
Greater than 110.60%10.93%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ 7.29%58.94% 91.59%68.27%
±2σ -18.54%84.77% 98.13%95.45%
±3σ -44.37%110.60% 99.07%99.73%
Open-to-Close Returns
Gram-Charlier Analysis: Data reveals Fairly Symmetrical with a Skewness factor of -0.24. Further, an Excess Kurtosis of 0.50 proves the distribution possesses Normal Tails (Mesokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -47.37%10.93%0.93%
-47.37% to -35.28%00.00%0.93%
-35.28% to -23.20%65.61%6.54%
-23.20% to -11.11%1614.95%21.50%
-11.11% to 0.97%3229.91%51.40%
0.97% to 13.06%2624.30%75.70%
13.06% to 25.14%1715.89%91.59%
25.14% to 37.23%98.41%100.00%
37.23% to 49.31%00.00%100.00%
Greater than 49.31%00.00%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -15.14%17.08% 73.83%68.27%
±2σ -31.25%33.20% 95.33%95.45%
±3σ -47.37%49.31% 99.07%99.73%
Close-to-Close Returns
Gram-Charlier Analysis: Data reveals Highly Right Skewed (Extreme Positive Tail Risk) with a Skewness factor of 4.41. Further, an Excess Kurtosis of 23.43 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -130.63%00.00%0.00%
-130.63% to -96.45%00.00%0.00%
-96.45% to -62.28%00.00%0.00%
-62.28% to -28.10%25.71%5.71%
-28.10% to 6.08%1954.29%60.00%
6.08% to 40.25%1337.14%97.14%
40.25% to 74.43%00.00%97.14%
74.43% to 108.61%00.00%97.14%
108.61% to 142.78%00.00%97.14%
Greater than 142.78%12.86%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -39.49%51.65% 91.43%68.27%
±2σ -85.06%97.21% 97.14%95.45%
±3σ -130.63%142.78% 97.14%99.73%
High-to-Low Returns
Gram-Charlier Analysis: Data reveals Highly Right Skewed (Extreme Positive Tail Risk) with a Skewness factor of 3.59. Further, an Excess Kurtosis of 16.43 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -88.02%00.00%0.00%
-88.02% to -49.95%00.00%0.00%
-49.95% to -11.88%00.00%0.00%
-11.88% to 26.19%12.78%2.78%
26.19% to 64.26%2158.33%61.11%
64.26% to 102.33%925.00%86.11%
102.33% to 140.40%411.11%97.22%
140.40% to 178.46%00.00%97.22%
178.46% to 216.53%00.00%97.22%
Greater than 216.53%12.78%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ 13.50%115.02% 88.89%68.27%
±2σ -37.26%165.78% 97.22%95.45%
±3σ -88.02%216.53% 97.22%99.73%
Open-to-Close Returns
Gram-Charlier Analysis: Data reveals Right Skewed (Positive Asymmetry) with a Skewness factor of 0.73. Further, an Excess Kurtosis of 3.43 proves the distribution possesses Extreme Fat Tails (Frequent Outliers, Leptokurtic).
Bin Distribution Over Raw Range
Bin / RangeFrequencyProbCum. Prob
Less than -77.80%00.00%0.00%
-77.80% to -57.83%12.78%2.78%
-57.83% to -37.86%00.00%2.78%
-37.86% to -17.89%513.89%16.67%
-17.89% to 2.08%1336.11%52.78%
2.08% to 22.05%1438.89%91.67%
22.05% to 42.02%12.78%94.44%
42.02% to 61.99%00.00%94.44%
61.99% to 81.96%25.56%100.00%
Greater than 81.96%00.00%100.00%
Standard Deviation Interval Analysis
SDLower BndUpper Bnd Actual %Normal %
±1σ -24.55%28.70% 83.33%68.27%
±2σ -51.18%55.33% 91.67%95.45%
±3σ -77.80%81.96% 100.00%99.73%